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Thread: Random disconnections from a Terayon TJ715x cable modem?

  1. #21
    Ant
    Guest

    Re: Random disconnections from a Terayon TJ715x cable modem?

    [snipped]
    > Yep, reboots fixed the problem. I reran the script to check and log all
    > of the statistics every two seconds and my cable modem's 192.168.100.1
    > stopped responding to my connection after 37 seconds (check every two
    > seconds).


    > I made the script to check every one minute (actually 58 seconds since
    > there are two seconds gap). That seems to be working after 15 minutes so
    > far. I hope one minute is enough to catch the disconnections. I probably
    > won't get another disconnection for another 12 hours or so.


    I just had another disconnection about ten minutes ago (4:45 PM PDT) and
    the Perl script log didn't show anything interesting from what I could
    see:

    Thu Oct 2 16:43:43 PDT 2008

    Diagnostics Page

    RF Page
    Tx Power 41.2 dBmV
    Rx Power -2.5 dBmV
    Downstream SNR 29.8 dB
    Downstream MER 29.4 dB
    Tx Frequency 33000000 Hz
    Rx Frequency 705000000 Hz

    Status Page
    Boot Status Operational
    Search for a Downstream Channel Complete
    Search for an Upstream Channel Complete
    Obtain Upstream Parameters Complete
    Establish IP Connectivity via DHCP Complete
    Establish Time of Day Complete
    Transfer Operational Parameters via TFTP Complete
    Register Connection Complete
    Initialize BPI Complete

    DS Freq Page
    DS Freq Value 705000000

    Config Page
    Modem IP 10.239.208.181
    Hardware Version 10.0
    Software Version 6.25
    DOCSIS Version 2.0
    Configuration file name isrrIP1BW1_2.bin@Cu_QtZK3pGsNCLut+zebpclPmO03z0+S
    Maximum Downstream Bandwidth 6144000
    Maximum Upstream Bandwidth 512000
    Maximum Number of CPEs 1

    --

    Thu Oct 2 16:44:43 PDT 2008

    Diagnostics Page

    RF Page
    Tx Power 41.2 dBmV
    Rx Power -2.4 dBmV
    Downstream SNR 29.4 dB
    Downstream MER 29.1 dB
    Tx Frequency 33000000 Hz
    Rx Frequency 705000000 Hz

    Status Page
    Boot Status Operational
    Search for a Downstream Channel Complete
    Search for an Upstream Channel Complete
    Obtain Upstream Parameters Complete
    Establish IP Connectivity via DHCP Complete
    Establish Time of Day Complete
    Transfer Operational Parameters via TFTP Complete
    Register Connection Complete
    Initialize BPI Complete

    DS Freq Page
    DS Freq Value 705000000

    Config Page
    Modem IP 10.239.208.181
    Hardware Version 10.0
    Software Version 6.25
    DOCSIS Version 2.0
    Configuration file name isrrIP1BW1_2.bin@Cu_QtZK3pGsNCLut+zebpclPmO03z0+S
    Maximum Downstream Bandwidth 6144000
    Maximum Upstream Bandwidth 512000
    Maximum Number of CPEs 1

    --

    Thu Oct 2 16:45:43 PDT 2008

    Diagnostics Page

    RF Page
    Tx Power 41.2 dBmV
    Rx Power -2.5 dBmV
    Downstream SNR 29.3 dB
    Downstream MER 28.9 dB
    Tx Frequency 33000000 Hz
    Rx Frequency 705000000 Hz

    Status Page
    Boot Status Operational
    Search for a Downstream Channel Complete
    Search for an Upstream Channel Complete
    Obtain Upstream Parameters Complete
    Establish IP Connectivity via DHCP Complete
    Establish Time of Day Complete
    Transfer Operational Parameters via TFTP Complete
    Register Connection Complete
    Initialize BPI Complete

    DS Freq Page
    DS Freq Value 705000000

    Config Page
    Modem IP 10.239.208.181
    Hardware Version 10.0
    Software Version 6.25
    DOCSIS Version 2.0
    Configuration file name isrrIP1BW1_2.bin@Cu_QtZK3pGsNCLut+zebpclPmO03z0+S
    Maximum Downstream Bandwidth 6144000
    Maximum Upstream Bandwidth 512000
    Maximum Number of CPEs 1

    --

    Thu Oct 2 16:46:43 PDT 2008

    Diagnostics Page

    RF Page
    Tx Power 41.2 dBmV
    Rx Power -2.4 dBmV
    Downstream SNR 29.0 dB
    Downstream MER 29.3 dB
    Tx Frequency 33000000 Hz
    Rx Frequency 705000000 Hz

    Status Page
    Boot Status Operational
    Search for a Downstream Channel Complete
    Search for an Upstream Channel Complete
    Obtain Upstream Parameters Complete
    Establish IP Connectivity via DHCP Complete
    Establish Time of Day Complete
    Transfer Operational Parameters via TFTP Complete
    Register Connection Complete
    Initialize BPI Complete

    DS Freq Page
    DS Freq Value 705000000

    Config Page
    Modem IP 10.239.208.181
    Hardware Version 10.0
    Software Version 6.25
    DOCSIS Version 2.0
    Configuration file name isrrIP1BW1_2.bin@Cu_QtZK3pGsNCLut+zebpclPmO03z0+S
    Maximum Downstream Bandwidth 6144000
    Maximum Upstream Bandwidth 512000
    Maximum Number of CPEs 1


    I used perl -x TJ715.pl. I will do another one too.
    --
    "If I want to be a robber, I rob the king's treasury. If I want to be a
    hunter, I hunt the rhino. What is the use of robbing beggars and hunting
    ants? So if you want to love, love God." --Swami Vivekananda
    /\___/\
    / /\ /\ \ Ant @ http://antfarm.home.dhs.org (Personal Web Site)
    | |o o| | Ant's Quality Foraged Links (AQFL): http://aqfl.net
    \ _ / Please remove ANT if replying by e-mail.
    ( )

  2. #22
    $Bill
    Guest

    Re: Random disconnections from a Terayon TJ715x cable modem?

    Ant wrote:
    >
    > I just had another disconnection about ten minutes ago (4:45 PM PDT) and
    > the Perl script log didn't show anything interesting from what I could
    > see:


    What about the diagnostic log webpage at that time ? (-l option)
    and check for things happening around that time.

  3. #23
    Ant
    Guest

    Re: Random disconnections from a Terayon TJ715x cable modem?

    > > I just had another disconnection about ten minutes ago (4:45 PM PDT) and
    > > the Perl script log didn't show anything interesting from what I could
    > > see:


    > What about the diagnostic log webpage at that time ? (-l option)
    > and check for things happening around that time.


    I will have to wait for the next disconnection. I have had checked the
    logs after the disconnections before. I didn't see anything odd. Here's
    an example from hours ago:

    Date (Y/M/D) Time Event ID Counter Level Event Text
    2008/08/16 18:06:45 85000200 1 Critical UCD invalid or channel unusable
    - T1 timeout: Giving up on UCD 41.
    2008/08/16 18:08:47 82000400 1 Critical Received Response to Broadcast
    Maintenance Request, But no Unicast Maintenance
    1970/01/01 00:49:45 82000200 1 Critical No Ranging Response received -
    T3 time-out.
    2008/08/18 14:37:06 84000500 1 Critical SYNC Timing Synchronization
    failure - Loss of Sync
    2008/08/18 14:37:26 82000400 1 Critical Received Response to Broadcast
    Maintenance Request, But no Unicast Maintenance
    2008/08/18 15:20:18 82000200 4 Critical No Ranging Response received -
    T3 time-out.
    2008/08/23 23:00:29 84000500 3 Critical SYNC Timing Synchronization
    failure - Loss of Sync
    2008/08/23 23:00:47 82000400 1 Critical Received Response to Broadcast
    Maintenance Request, But no Unicast Maintenance
    2008/08/23 23:10:04 84000500 2 Critical SYNC Timing Synchronization
    failure - Loss of Sync
    2008/08/23 23:10:30 82000400 1 Critical Received Response to Broadcast
    Maintenance Request, But no Unicast Maintenance
    2008/08/27 07:45:23 84000500 1 Critical SYNC Timing Synchronization
    failure - Loss of Sync
    2008/08/27 07:45:54 82000400 1 Critical Received Response to Broadcast
    Maintenance Request, But no Unicast Maintenance
    2008/08/27 07:48:23 82000200 16 Critical No Ranging Response received -
    T3 time-out.
    2008/08/27 07:48:23 82000300 1 Critical Ranging Request Retries
    exhausted
    2008/08/27 07:48:23 85000200 1 Critical UCD invalid or channel unusable
    - T3 timeout: Giving up on UCD 10.
    2008/08/27 07:49:37 82000200 16 Critical No Ranging Response received -
    T3 time-out.
    2008/08/27 07:49:37 82000300 1 Critical Ranging Request Retries
    exhausted
    2008/08/27 07:49:37 85000200 1 Critical UCD invalid or channel unusable
    - T3 timeout: Giving up on UCD 8.
    2008/08/27 07:51:05 82000200 16 Critical No Ranging Response received -
    T3 time-out.
    2008/08/27 07:51:05 82000300 1 Critical Ranging Request Retries
    exhausted
    2008/08/27 07:51:05 85000200 1 Critical UCD invalid or channel unusable
    - T3 timeout: Giving up on UCD 9.
    2008/08/27 07:52:12 82000200 12 Critical No Ranging Response received -
    T3 time-out.
    2008/09/01 02:18:00 84000500 1 Critical SYNC Timing Synchronization
    failure - Loss of Sync
    2008/09/01 02:18:13 82000400 1 Critical Received Response to Broadcast
    Maintenance Request, But no Unicast Maintenance
    2008/09/01 02:21:38 84000500 4 Critical SYNC Timing Synchronization
    failure - Loss of Sync
    2008/09/01 02:21:39 82000400 1 Critical Received Response to Broadcast
    Maintenance Request, But no Unicast Maintenance
    2008/09/01 02:21:49 84000500 1 Critical SYNC Timing Synchronization
    failure - Loss of Sync
    1970/01/01 00:00:03 2242905932 1 Notice SNMP Poll - Eth Link Up.
    1970/01/01 00:00:08 68000300 1 Warning DHCP WARNING - Non-critical field
    invalid in response
    2008/10/02 13:27:23 66010100 2 Error Missing BP Configuration Setting
    TLV Type: 17.9
    2008/10/02 13:27:25 2242905917 1 Notice SNMP Poll - Mac Link Up.
    2008/10/02 13:27:25 2242905786 1 Notice SNMP Poll - DS Link Up.
    2008/10/02 13:27:25 2242905803 1 Notice SNMP Poll - US Link Up.
    2008/10/02 13:27:25 2242905723 1 Notice SNMP_AGENT_COLD_START


    Note that 10/2/2008 what the cable modem reboot I did earlier. ;) I will
    check again for the next one(s).
    --
    "If I want to be a robber, I rob the king's treasury. If I want to be a
    hunter, I hunt the rhino. What is the use of robbing beggars and hunting
    ants? So if you want to love, love God." --Swami Vivekananda
    /\___/\
    / /\ /\ \ Ant @ http://antfarm.home.dhs.org (Personal Web Site)
    | |o o| | Ant's Quality Foraged Links (AQFL): http://aqfl.net
    \ _ / Please remove ANT if replying by e-mail.
    ( )

  4. #24
    1PW
    Guest

    Re: Random disconnections from a Terayon TJ715x cable modem?

    On 10/02/2008 04:58 PM, Ant sent:
    > [snipped]
    >> Yep, reboots fixed the problem. I reran the script to check and log all
    >> of the statistics every two seconds and my cable modem's 192.168.100.1
    >> stopped responding to my connection after 37 seconds (check every two
    >> seconds).

    >
    >> I made the script to check every one minute (actually 58 seconds since
    >> there are two seconds gap). That seems to be working after 15 minutes so
    >> far. I hope one minute is enough to catch the disconnections. I probably
    >> won't get another disconnection for another 12 hours or so.

    >
    > I just had another disconnection about ten minutes ago (4:45 PM PDT) and
    > the Perl script log didn't show anything interesting from what I could
    > see:
    >
    > Thu Oct 2 16:43:43 PDT 2008
    >
    > Diagnostics Page
    >
    > RF Page
    > Tx Power 41.2 dBmV
    > Rx Power -2.5 dBmV
    > Downstream SNR 29.8 dB
    > Downstream MER 29.4 dB
    > Tx Frequency 33000000 Hz
    > Rx Frequency 705000000 Hz
    >
    > Status Page
    > Boot Status Operational
    > Search for a Downstream Channel Complete
    > Search for an Upstream Channel Complete
    > Obtain Upstream Parameters Complete
    > Establish IP Connectivity via DHCP Complete
    > Establish Time of Day Complete
    > Transfer Operational Parameters via TFTP Complete
    > Register Connection Complete
    > Initialize BPI Complete
    >
    > DS Freq Page
    > DS Freq Value 705000000
    >
    > Config Page
    > Modem IP 10.239.208.181
    > Hardware Version 10.0
    > Software Version 6.25
    > DOCSIS Version 2.0
    > Configuration file name isrrIP1BW1_2.bin@Cu_QtZK3pGsNCLut+zebpclPmO03z0+S
    > Maximum Downstream Bandwidth 6144000
    > Maximum Upstream Bandwidth 512000
    > Maximum Number of CPEs 1
    >
    > --
    >
    > Thu Oct 2 16:44:43 PDT 2008
    >
    > Diagnostics Page
    >
    > RF Page
    > Tx Power 41.2 dBmV
    > Rx Power -2.4 dBmV
    > Downstream SNR 29.4 dB
    > Downstream MER 29.1 dB
    > Tx Frequency 33000000 Hz
    > Rx Frequency 705000000 Hz
    >
    > Status Page
    > Boot Status Operational
    > Search for a Downstream Channel Complete
    > Search for an Upstream Channel Complete
    > Obtain Upstream Parameters Complete
    > Establish IP Connectivity via DHCP Complete
    > Establish Time of Day Complete
    > Transfer Operational Parameters via TFTP Complete
    > Register Connection Complete
    > Initialize BPI Complete
    >
    > DS Freq Page
    > DS Freq Value 705000000
    >
    > Config Page
    > Modem IP 10.239.208.181
    > Hardware Version 10.0
    > Software Version 6.25
    > DOCSIS Version 2.0
    > Configuration file name isrrIP1BW1_2.bin@Cu_QtZK3pGsNCLut+zebpclPmO03z0+S
    > Maximum Downstream Bandwidth 6144000
    > Maximum Upstream Bandwidth 512000
    > Maximum Number of CPEs 1
    >
    > --
    >
    > Thu Oct 2 16:45:43 PDT 2008
    >
    > Diagnostics Page
    >
    > RF Page
    > Tx Power 41.2 dBmV
    > Rx Power -2.5 dBmV
    > Downstream SNR 29.3 dB
    > Downstream MER 28.9 dB
    > Tx Frequency 33000000 Hz
    > Rx Frequency 705000000 Hz
    >
    > Status Page
    > Boot Status Operational
    > Search for a Downstream Channel Complete
    > Search for an Upstream Channel Complete
    > Obtain Upstream Parameters Complete
    > Establish IP Connectivity via DHCP Complete
    > Establish Time of Day Complete
    > Transfer Operational Parameters via TFTP Complete
    > Register Connection Complete
    > Initialize BPI Complete
    >
    > DS Freq Page
    > DS Freq Value 705000000
    >
    > Config Page
    > Modem IP 10.239.208.181
    > Hardware Version 10.0
    > Software Version 6.25
    > DOCSIS Version 2.0
    > Configuration file name isrrIP1BW1_2.bin@Cu_QtZK3pGsNCLut+zebpclPmO03z0+S
    > Maximum Downstream Bandwidth 6144000
    > Maximum Upstream Bandwidth 512000
    > Maximum Number of CPEs 1
    >
    > --
    >
    > Thu Oct 2 16:46:43 PDT 2008
    >
    > Diagnostics Page
    >
    > RF Page
    > Tx Power 41.2 dBmV
    > Rx Power -2.4 dBmV
    > Downstream SNR 29.0 dB
    > Downstream MER 29.3 dB
    > Tx Frequency 33000000 Hz
    > Rx Frequency 705000000 Hz
    >
    > Status Page
    > Boot Status Operational
    > Search for a Downstream Channel Complete
    > Search for an Upstream Channel Complete
    > Obtain Upstream Parameters Complete
    > Establish IP Connectivity via DHCP Complete
    > Establish Time of Day Complete
    > Transfer Operational Parameters via TFTP Complete
    > Register Connection Complete
    > Initialize BPI Complete
    >
    > DS Freq Page
    > DS Freq Value 705000000
    >
    > Config Page
    > Modem IP 10.239.208.181
    > Hardware Version 10.0
    > Software Version 6.25
    > DOCSIS Version 2.0
    > Configuration file name isrrIP1BW1_2.bin@Cu_QtZK3pGsNCLut+zebpclPmO03z0+S
    > Maximum Downstream Bandwidth 6144000
    > Maximum Upstream Bandwidth 512000
    > Maximum Number of CPEs 1
    >
    >
    > I used perl -x TJ715.pl. I will do another one too.


    If the Netgear RT311 router was removed from the equation while this
    testing occurred, then the Terayon TJ715x cable modem and Road Runner's
    outside plant has not been ruled out. While the send and receive levels
    have always been OK, I'm a bit surprised to see that your downstream SNR
    has taken a 4 dB turn for the worse. Perhaps while you weren't looking,
    the receive SNR was even worse too.

    I wonder if you have a source for borrowing a cable modem for a day or
    so? If so, that's the next logical item to try. If you have any other
    services from your cable provider, I would ask if you receive any
    intermittent losses of service. e.g. If you have cable based telephone
    service, do you experience any voice dropouts from the opposite end.

    If you have television service, do you experience losses of signal or
    video "tiling" that might coincide with your Internet failures? If you
    have any cable splitters or multiport couplers between your cable modem
    and your demarcation point, you might consider switching things around
    and disconnect/reconnect cables that haven't been touched in years.
    Tighten everything with a 7/16" open end wrench such that you use
    *slightly* more force than your fingers are capable of. Some of your
    oldest F59 connector plugs might be overdue for replacement. RG-59 coax
    could be upgraded to good quality RG-6. Do you have any sort of on-site
    cable equipment that might contribute to this, or hasn't been mentioned?

    Is your cable ingress from a utility pole or underground?

    I suppose you could always set aside your own cable modem and rent one
    from your provider for a month or so. Comcast, in NoCal, rents ours out
    at $3/Mo.

    What do you think about all this?

    Pete

    --
    1PW

    @?6A62?FEH9:DE=6o2@=]4@> [r4o7t]

  5. #25
    1PW
    Guest

    Re: Random disconnections from a Terayon TJ715x cable modem?

    On 10/02/2008 05:50 PM, $Bill sent:
    > Ant wrote:
    >>
    >> I just had another disconnection about ten minutes ago (4:45 PM PDT) and
    >> the Perl script log didn't show anything interesting from what I could
    >> see:

    >
    > What about the diagnostic log webpage at that time ? (-l option)
    > and check for things happening around that time.


    Hello Bill:

    I'm fairly sure it would take me a month of Sundays to adapt the Pearl
    script from Terayon TJ715x use to Scientific Atlanta DPC2100 use. Are
    you the author, or do you know of anything like the script that's been
    written for that or the Linksys cable modems?

    Thank you kindly,

    Pete

    --
    1PW

    @?6A62?FEH9:DE=6o2@=]4@> [r4o7t]

  6. #26
    Ant
    Guest

    Re: Random disconnections from a Terayon TJ715x cable modem?

    On 10/2/2008 8:33 PM PT, 1PW typed:

    [snipped]

    >> I used perl -x TJ715.pl. I will do another one too.

    >
    > If the Netgear RT311 router was removed from the equation while this
    > testing occurred, then the Terayon TJ715x cable modem and Road Runner's
    > outside plant has not been ruled out. While the send and receive levels
    > have always been OK, I'm a bit surprised to see that your downstream SNR
    > has taken a 4 dB turn for the worse. Perhaps while you weren't looking,
    > the receive SNR was even worse too.


    I have not tried the router part. Are you saying the 4 dB change for SNR
    is that bad? I don't see any 4 value changes in the log parts I posted
    earlier.


    > I wonder if you have a source for borrowing a cable modem for a day or
    > so? If so, that's the next logical item to try. If you have any other
    > services from your cable provider, I would ask if you receive any
    > intermittent losses of service. e.g. If you have cable based telephone
    > service, do you experience any voice dropouts from the opposite end.


    I will probably go to the local office to ask for a modem exchange since
    this was a leased modem during Adelphia days.


    > If you have television service, do you experience losses of signal or
    > video "tiling" that might coincide with your Internet failures? If you
    > have any cable splitters or multiport couplers between your cable modem
    > and your demarcation point, you might consider switching things around
    > and disconnect/reconnect cables that haven't been touched in years.
    > Tighten everything with a 7/16" open end wrench such that you use
    > *slightly* more force than your fingers are capable of. Some of your
    > oldest F59 connector plugs might be overdue for replacement. RG-59 coax
    > could be upgraded to good quality RG-6. Do you have any sort of on-site
    > cable equipment that might contribute to this, or hasn't been mentioned?


    I don't have any other cable services. Just Internet.


    > Is your cable ingress from a utility pole or underground?


    Underground. I know a mile away it, from my place, is on poles.
    --
    "Stir up an ant's nest." --unknown
    /\___/\
    / /\ /\ \ Phil/Ant @ http://antfarm.home.dhs.org (Personal Web Site)
    | |o o| | Ant's Quality Foraged Links (AQFL): http://aqfl.net
    \ _ / Remove ANT from e-mail address: philpi@earthlink.netANT
    ( ) or ANTant@zimage.com
    Ant is currently not listening to any songs on his home computer.

  7. #27
    $Bill
    Guest

    Re: Random disconnections from a Terayon TJ715x cable modem?

    1PW wrote:
    >
    > Hello Bill:
    >
    > I'm fairly sure it would take me a month of Sundays to adapt the Pearl


    That's Perl not Pearl.

    > script from Terayon TJ715x use to Scientific Atlanta DPC2100 use. Are
    > you the author, or do you know of anything like the script that's been
    > written for that or the Linksys cable modems?


    If the SA has similar type pages, it shouldn't be difficult at all and
    yes, I wrote it (basically a quick and dirty mainly to get my RF page).
    It's just a matter of retrieving the pages and parsing the data you want
    out of them. The Terayon was reasonably easy as you can probably see
    from the code - there's maybe 10-12 lines for each page that's specific
    to that page.

  8. #28
    1PW
    Guest

    Re: Random disconnections from a Terayon TJ715x cable modem?

    On 10/02/2008 09:53 PM, Ant sent:
    > On 10/2/2008 8:33 PM PT, 1PW typed:
    >
    > [snipped]
    >
    >>> I used perl -x TJ715.pl. I will do another one too.

    >>
    >> If the Netgear RT311 router was removed from the equation while this
    >> testing occurred, then the Terayon TJ715x cable modem and Road Runner's
    >> outside plant has not been ruled out. While the send and receive levels
    >> have always been OK, I'm a bit surprised to see that your downstream SNR
    >> has taken a 4 dB turn for the worse. Perhaps while you weren't looking,
    >> the receive SNR was even worse too.

    >
    > I have not tried the router part. Are you saying the 4 dB change for SNR
    > is that bad? I don't see any 4 value changes in the log parts I posted
    > earlier.
    >


    Last Thursday, September 30th, you said that your downstream receive sig
    was:

    "Rx Power -1.9 dBmV
    Downstream SNR 33.4 dB"

    The receive signal level is fine if it's generally 0.0 dBmV plus or
    minus 12 to 15 dB or so. YMMV. Your receive SNR /was/ fair at 33.4 dB,
    and would be even better at 35 dB. However you have reported your
    receive SNR to be as poor as 29.0 dB today and you might start seeing
    receive errors.

    <http://www.speedguide.net/read_articles.php?id=1197>

    >
    >> I wonder if you have a source for borrowing a cable modem for a day or
    >> so? If so, that's the next logical item to try. If you have any other
    >> services from your cable provider, I would ask if you receive any
    >> intermittent losses of service. e.g. If you have cable based telephone
    >> service, do you experience any voice dropouts from the opposite end.

    >
    > I will probably go to the local office to ask for a modem exchange since
    > this was a leased modem during Adelphia days.
    >


    Sounds reasonable. I just hope you don't bring home a worse one. This
    happened to me with three Motorola HD cable receivers. Just as I was
    about to cancel all service, they unpacked a new model for me to "try
    just one more time". Now the HD TV is good.

    >
    >> If you have television service, do you experience losses of signal or
    >> video "tiling" that might coincide with your Internet failures? If you
    >> have any cable splitters or multiport couplers between your cable modem
    >> and your demarcation point, you might consider switching things around
    >> and disconnect/reconnect cables that haven't been touched in years.
    >> Tighten everything with a 7/16" open end wrench such that you use
    >> *slightly* more force than your fingers are capable of. Some of your
    >> oldest F59 connector plugs might be overdue for replacement. RG-59 coax
    >> could be upgraded to good quality RG-6. Do you have any sort of on-site
    >> cable equipment that might contribute to this, or hasn't been mentioned?

    >
    > I don't have any other cable services. Just Internet.
    >


    Oh well... the other stuff above applies though.

    >
    >> Is your cable ingress from a utility pole or underground?

    >
    > Underground. I know a mile away it, from my place, is on poles.



    --
    1PW

    @?6A62?FEH9:DE=6o2@=]4@> [r4o7t]

  9. #29
    1PW
    Guest

    Re: Random disconnections from a Terayon TJ715x cable modem?

    On 10/02/2008 11:31 PM, $Bill sent:
    > 1PW wrote:
    >>
    >> Hello Bill:
    >>
    >> I'm fairly sure it would take me a month of Sundays to adapt the Pearl

    >
    > That's Perl not Pearl.


    I suppose that's what you get when you cast your perl scripts before
    bash swine... [Groan] I've had a few more beers and I should be very
    well behaved now. Thank you for correcting me.

    >
    >> script from Terayon TJ715x use to Scientific Atlanta DPC2100 use. Are
    >> you the author, or do you know of anything like the script that's been
    >> written for that or the Linksys cable modems?

    >
    > If the SA has similar type pages, it shouldn't be difficult at all and
    > yes, I wrote it (basically a quick and dirty mainly to get my RF page).
    > It's just a matter of retrieving the pages and parsing the data you want
    > out of them. The Terayon was reasonably easy as you can probably see
    > from the code - there's maybe 10-12 lines for each page that's specific
    > to that page.


    I copied the file and was slightly disappointed to see you hadn't taken
    credit for what is obviously a significant undertaking. I very well may
    try to adapt your work towards use with a Linksys modem I'm getting. I
    have a sensitive part in my brain about plagiarized work but I suppose
    credit can still go to $Bill.

    Thank you kindly.

    Pete

    --
    1PW

    @?6A62?FEH9:DE=6o2@=]4@> [r4o7t]

  10. #30
    $Bill
    Guest

    Re: Random disconnections from a Terayon TJ715x cable modem?

    1PW wrote:
    >
    > I copied the file and was slightly disappointed to see you hadn't taken
    > credit for what is obviously a significant undertaking.


    I write scripts like that every day that the need arises - I wouldn't
    call it significant. I did the same for my Netgear RP614 router, but
    it's incomplete due to problems getting the popup status/statistics
    pages which I haven't had time to debug. If I need a schedule for my
    favorite sports team, I write another one, etc.

    > I very well may
    > try to adapt your work towards use with a Linksys modem I'm getting. I
    > have a sensitive part in my brain about plagiarized work but I suppose
    > credit can still go to $Bill.


    While I didn't give Ant authorization to disseminate it, I give you
    permission to use it as you will for your own use. ;)

    If you need any help, let me know and I'll see what I can do.
    Basically what you need to do is take your browser to the page
    and dump the source out so you can see what you want to use of
    the HTML and what the page URLs are, etc.

  11. #31
    Ant
    Guest

    Re: Random disconnections from a Terayon TJ715x cable modem?

    On 10/3/2008 12:57 AM PT, 1PW typed:

    >> [snipped]
    >>
    >>>> I used perl -x TJ715.pl. I will do another one too.
    >>> If the Netgear RT311 router was removed from the equation while this
    >>> testing occurred, then the Terayon TJ715x cable modem and Road Runner's
    >>> outside plant has not been ruled out. While the send and receive levels
    >>> have always been OK, I'm a bit surprised to see that your downstream SNR
    >>> has taken a 4 dB turn for the worse. Perhaps while you weren't looking,
    >>> the receive SNR was even worse too.

    >> I have not tried the router part. Are you saying the 4 dB change for SNR
    >> is that bad? I don't see any 4 value changes in the log parts I posted
    >> earlier.

    >
    > Last Thursday, September 30th, you said that your downstream receive sig
    > was:
    >
    > "Rx Power -1.9 dBmV
    > Downstream SNR 33.4 dB"
    >
    > The receive signal level is fine if it's generally 0.0 dBmV plus or
    > minus 12 to 15 dB or so. YMMV. Your receive SNR /was/ fair at 33.4 dB,
    > and would be even better at 35 dB. However you have reported your
    > receive SNR to be as poor as 29.0 dB today and you might start seeing
    > receive errors.
    >
    > <http://www.speedguide.net/read_articles.php?id=1197>


    Ah. I haven't had any new disconnections and here's my latest log:
    Fri Oct 3 05:20:31 PDT 2008

    Diagnostics Page

    RF Page
    Tx Power 40.0 dBmV
    Rx Power -1.0 dBmV
    Downstream SNR 32.8 dB
    Downstream MER 31.9 dB
    Tx Frequency 33000000 Hz
    Rx Frequency 705000000 Hz


    Funny, I can't connect to my cable modem's Web pages again. I guess one
    minute gap isn't enough. Sheesh! Is that normal? I don't feel like
    powercycling my cable modem right now (just woke up). :D I'll do it later.


    >>> I wonder if you have a source for borrowing a cable modem for a day or
    >>> so? If so, that's the next logical item to try. If you have any other
    >>> services from your cable provider, I would ask if you receive any
    >>> intermittent losses of service. e.g. If you have cable based telephone
    >>> service, do you experience any voice dropouts from the opposite end.

    >> I will probably go to the local office to ask for a modem exchange since
    >> this was a leased modem during Adelphia days.
    >>

    >
    > Sounds reasonable. I just hope you don't bring home a worse one. This
    > happened to me with three Motorola HD cable receivers. Just as I was
    > about to cancel all service, they unpacked a new model for me to "try
    > just one more time". Now the HD TV is good.


    Haha. I wonder what they have these days. I have had Terayon (a
    non-DOCSIS model before the city's cable was upgraded a few years ago)
    and COM21 brands in the last.
    --
    "They are like the ant... They start one way and turn around and go the
    other way... They look all the time at the ground and never see the
    sky." --Davi Kopenawa Yanomami, Amazonian Indian (Newsweek 117(17):5, 1991)
    /\___/\
    / /\ /\ \ Phil/Ant @ http://antfarm.home.dhs.org (Personal Web Site)
    | |o o| | Ant's Quality Foraged Links (AQFL): http://aqfl.net
    \ _ / Remove ANT from e-mail address: philpi@earthlink.netANT
    ( ) or ANTant@zimage.com
    Ant is currently not listening to any songs on his home computer.

  12. #32
    Ant
    Guest

    Re: Random disconnections from a Terayon TJ715x cable modem?

    > Ah. I haven't had any new disconnections and here's my latest log:
    > Fri Oct 3 05:20:31 PDT 2008


    > Diagnostics Page


    > RF Page
    > Tx Power 40.0 dBmV
    > Rx Power -1.0 dBmV
    > Downstream SNR 32.8 dB
    > Downstream MER 31.9 dB
    > Tx Frequency 33000000 Hz
    > Rx Frequency 705000000 Hz



    > Funny, I can't connect to my cable modem's Web pages again. I guess one
    > minute gap isn't enough. Sheesh! Is that normal? I don't feel like
    > powercycling my cable modem right now (just woke up). :D I'll do it later.


    Dang it! It looks my cable modem finally bit the dust or something.
    Since this morning, cable modem got disconnected when I was moving its
    cables and couldn't resynch a for few minutes even after recycling its
    power. I wiggled its coax cable connector a little and it synched.

    At about 1:15 PM PDT, it went down again and didn't come back (probably
    have to go home and wiggle that coax cable again on the modem). I can't
    reach it either from outside:
    ....
    From 76.167.12.158 icmp_seq=1437 Destination Host Unreachable
    From 76.167.12.158 icmp_seq=1438 Destination Host Unreachable
    From 76.167.12.158 icmp_seq=1442 Destination Host Unreachable
    From 76.167.12.158 icmp_seq=1443 Destination Host Unreachable
    From 76.167.12.158 icmp_seq=1447 Destination Host Unreachable
    From 76.167.12.158 icmp_seq=1448 Destination Host Unreachable

    --- 76.166.168.147 ping statistics ---
    1450 packets transmitted, 0 received, +580 errors, 100% packet loss

    So, 76.167.12.158 (gig14-1-indyca1-ars1.socal.rr.com) couldn't ping my
    IP address.

    I think I will visit the local office tomorrow to exchange the modem.
    And tonight is a dial-up night. :(
    --
    "If I want to be a robber, I rob the king's treasury. If I want to be a
    hunter, I hunt the rhino. What is the use of robbing beggars and hunting
    ants? So if you want to love, love God." --Swami Vivekananda
    /\___/\
    / /\ /\ \ Ant @ http://antfarm.home.dhs.org (Personal Web Site)
    | |o o| | Ant's Quality Foraged Links (AQFL): http://aqfl.net
    \ _ / Please remove ANT if replying by e-mail.
    ( )

  13. #33
    Ant
    Guest

    Re: Random disconnections from a Terayon TJ715x cable modem?

    > Dang it! It looks my cable modem finally bit the dust or something.
    > Since this morning, cable modem got disconnected when I was moving its
    > cables and couldn't resynch a for few minutes even after recycling its
    > power. I wiggled its coax cable connector a little and it synched.


    > At about 1:15 PM PDT, it went down again and didn't come back (probably
    > have to go home and wiggle that coax cable again on the modem). I can't
    > reach it either from outside:
    > ...
    > From 76.167.12.158 icmp_seq=1437 Destination Host Unreachable
    > From 76.167.12.158 icmp_seq=1438 Destination Host Unreachable
    > From 76.167.12.158 icmp_seq=1442 Destination Host Unreachable
    > From 76.167.12.158 icmp_seq=1443 Destination Host Unreachable
    > From 76.167.12.158 icmp_seq=1447 Destination Host Unreachable
    > From 76.167.12.158 icmp_seq=1448 Destination Host Unreachable


    > --- 76.166.168.147 ping statistics ---
    > 1450 packets transmitted, 0 received, +580 errors, 100% packet loss


    > So, 76.167.12.158 (gig14-1-indyca1-ars1.socal.rr.com) couldn't ping my
    > IP address.


    > I think I will visit the local office tomorrow to exchange the modem.
    > And tonight is a dial-up night. :(


    And my cable modem came back alive by itself. Yup, history repeats again
    and it is signal related. Snipped log from the Perl script:
    http://pastie.org/284576

    I am still planning to visit the local office to exchange modem tomorrow
    since the problems are crazy now. I really hope it is not a cable line
    issue!
    --
    "If I want to be a robber, I rob the king's treasury. If I want to be a
    hunter, I hunt the rhino. What is the use of robbing beggars and hunting
    ants? So if you want to love, love God." --Swami Vivekananda
    /\___/\
    / /\ /\ \ Ant @ http://antfarm.home.dhs.org (Personal Web Site)
    | |o o| | Ant's Quality Foraged Links (AQFL): http://aqfl.net
    \ _ / Please remove ANT if replying by e-mail.
    ( )

  14. #34
    Ant
    Guest

    Re: Random disconnections from a Terayon TJ715x cable modem?

    Ant <ANTant@zimage.com> wrote:
    > > Dang it! It looks my cable modem finally bit the dust or something.
    > > Since this morning, cable modem got disconnected when I was moving its
    > > cables and couldn't resynch a for few minutes even after recycling its
    > > power. I wiggled its coax cable connector a little and it synched.


    > > At about 1:15 PM PDT, it went down again and didn't come back (probably
    > > have to go home and wiggle that coax cable again on the modem). I can't
    > > reach it either from outside:
    > > ...
    > > From 76.167.12.158 icmp_seq=1437 Destination Host Unreachable
    > > From 76.167.12.158 icmp_seq=1438 Destination Host Unreachable
    > > From 76.167.12.158 icmp_seq=1442 Destination Host Unreachable
    > > From 76.167.12.158 icmp_seq=1443 Destination Host Unreachable
    > > From 76.167.12.158 icmp_seq=1447 Destination Host Unreachable
    > > From 76.167.12.158 icmp_seq=1448 Destination Host Unreachable


    > > --- 76.166.168.147 ping statistics ---
    > > 1450 packets transmitted, 0 received, +580 errors, 100% packet loss


    > > So, 76.167.12.158 (gig14-1-indyca1-ars1.socal.rr.com) couldn't ping my
    > > IP address.


    > > I think I will visit the local office tomorrow to exchange the modem.
    > > And tonight is a dial-up night. :(


    > And my cable modem came back alive by itself. Yup, history repeats again
    > and it is signal related. Snipped log from the Perl script:
    > http://pastie.org/284576


    > I am still planning to visit the local office to exchange modem tomorrow
    > since the problems are crazy now. I really hope it is not a cable line
    > issue!


    Lost connections again earlier, but for a little short time. I think it
    will keep doing that. It's too late to go to visit the local office
    today.
    --
    "If I want to be a robber, I rob the king's treasury. If I want to be a
    hunter, I hunt the rhino. What is the use of robbing beggars and hunting
    ants? So if you want to love, love God." --Swami Vivekananda
    /\___/\
    / /\ /\ \ Ant @ http://antfarm.home.dhs.org (Personal Web Site)
    | |o o| | Ant's Quality Foraged Links (AQFL): http://aqfl.net
    \ _ / Please remove ANT if replying by e-mail.
    ( )

  15. #35
    1PW
    Guest

    Re: Random disconnections from a Terayon TJ715x cable modem?

    On 10/03/2008 06:16 PM, Ant sent:

    Snip, snip...

    >
    > Lost connections again earlier, but for a little short time. I think it
    > will keep doing that. It's too late to go to visit the local office
    > today.


    One of your phrases is key; "I wiggled its coax cable connector a little
    and it synced." A high probability exists that the RG59/RG6 cable, that
    terminates at your cable modem, is intermittently failing. I would
    consider asking your provider for a cable that can replace your existing
    one. I would *not* buy one from Radio Shack or the equivalent. The
    replacement will probably/should be made of high quality RG6 coax, and
    have the latest good quality crimped connectors. It certainly wouldn't
    hurt to request the provider give you the latest model cable modem with
    the latest firmware.

    Hope to hear from you soon.

    --
    1PW

    @?6A62?FEH9:DE=6o2@=]4@> [r4o7t]

  16. #36
    Ant
    Guest

    Re: Random disconnections from a Terayon TJ715x cable modem?

    On 10/3/2008 7:16 PM PT, 1PW typed:

    > On 10/03/2008 06:16 PM, Ant sent:
    >
    > Snip, snip...
    >
    >> Lost connections again earlier, but for a little short time. I think it
    >> will keep doing that. It's too late to go to visit the local office
    >> today.

    >
    > One of your phrases is key; "I wiggled its coax cable connector a little
    > and it synced." A high probability exists that the RG59/RG6 cable, that
    > terminates at your cable modem, is intermittently failing. I would
    > consider asking your provider for a cable that can replace your existing
    > one. I would *not* buy one from Radio Shack or the equivalent. The
    > replacement will probably/should be made of high quality RG6 coax, and
    > have the latest good quality crimped connectors. It certainly wouldn't
    > hurt to request the provider give you the latest model cable modem with
    > the latest firmware.


    Is that the white coax cable (its printed texts say "Adelphia
    Communication E830032A (UL) CATV AWG 063840") that goes from outside to
    into the house? If so, then Adelphia's contractors set that line (hope
    it is a high quality) up back in March 2001. The house never had cable
    TV before so the holes had to be drilled, cables, stapled to outside
    walls, etc. This was back when Excite@Home was the service and Adelphia
    just took over Century Communications. I assume the contractors cabled
    from my room to downstair outdoor (no splitters and stuff).

    Heh. I was trying to read the texts on the cable line in my room and my
    cable modem decide to lose synchronization. I had to wiggle the
    connector to the modem again. It's not loose either.
    --
    "The evaluator counts the ants at the picnic of progress." --Mohan Singh
    /\___/\
    / /\ /\ \ Phil/Ant @ http://antfarm.home.dhs.org (Personal Web Site)
    | |o o| | Ant's Quality Foraged Links (AQFL): http://aqfl.net
    \ _ / Remove ANT from e-mail address: philpi@earthlink.netANT
    ( ) or ANTant@zimage.com
    Ant is currently not listening to any songs on his home computer.

  17. #37
    1PW
    Guest

    Re: Random disconnections from a Terayon TJ715x cable modem?

    On 10/03/2008 10:37 PM, Ant sent:
    > On 10/3/2008 7:16 PM PT, 1PW typed:
    >
    >> On 10/03/2008 06:16 PM, Ant sent:
    >>
    >> Snip, snip...
    >>
    >>> Lost connections again earlier, but for a little short time. I think
    >>> it will keep doing that. It's too late to go to visit the local
    >>> office today.

    >>
    >> One of your phrases is key; "I wiggled its coax cable connector a little
    >> and it synced." A high probability exists that the RG59/RG6 cable, that
    >> terminates at your cable modem, is intermittently failing. I would
    >> consider asking your provider for a cable that can replace your existing
    >> one. I would *not* buy one from Radio Shack or the equivalent. The
    >> replacement will probably/should be made of high quality RG6 coax, and
    >> have the latest good quality crimped connectors. It certainly wouldn't
    >> hurt to request the provider give you the latest model cable modem with
    >> the latest firmware.

    >
    > Is that the white coax cable (its printed texts say "Adelphia
    > Communication E830032A (UL) CATV AWG 063840") that goes from outside to
    > into the house? If so, then Adelphia's contractors set that line (hope
    > it is a high quality) up back in March 2001. The house never had cable
    > TV before so the holes had to be drilled, cables, stapled to outside
    > walls, etc. This was back when Excite@Home was the service and Adelphia
    > just took over Century Communications. I assume the contractors cabled
    > from my room to downstair outdoor (no splitters and stuff).
    >
    > Heh. I was trying to read the texts on the cable line in my room and my
    > cable modem decide to lose synchronization. I had to wiggle the
    > connector to the modem again. It's not loose either.


    If the coax is one unbroken piece of cabling, from the demarcation point
    to the coaxial connector on your Terayon TJ715x, then it would be
    difficult for you to replace that cable. In that case, and if indeed
    you have an intermittent connection at the modem end where the male
    coaxial connector terminates the cable, then it might be best if your
    service provider sends a technician out to trim off a few inches of the
    coax and crimp a new male connector on. The other possibility is that
    the female connector, on the Terayon cable modem, has become
    intermittent and the most reasonable remedy is to replace the modem.

    If indeed you exchange cable modems on Saturday, that should further
    isolate the trouble for you. Remember to exchange the wall wart power
    adapter too.

    --
    1PW

    @?6A62?FEH9:DE=6o2@=]4@> [r4o7t]

  18. #38
    Ant
    Guest

    Re: Random disconnections from a Terayon TJ715x cable modem?

    On 10/4/2008 1:56 AM PT, 1PW typed:

    > If indeed you exchange cable modems on Saturday, that should further
    > isolate the trouble for you. Remember to exchange the wall wart power
    > adapter too.


    Yeah, I have the whole box, cable modem, and power AC (why do I want to
    keep it?) to return. I haven't had any more disconnections and weirdness
    so far since I last posted. I just hope the new modem isn't defected and
    stuff. :P Funny how I got my cable bill yesterday so I will save a stamp
    today by paying them in person later today.
    --
    "Better (to be) an ant's head than a lion's tail." --Armenian and Maltese
    /\___/\
    / /\ /\ \ Phil/Ant @ http://antfarm.home.dhs.org (Personal Web Site)
    | |o o| | Ant's Quality Foraged Links (AQFL): http://aqfl.net
    \ _ / Remove ANT from e-mail address: philpi@earthlink.netANT
    ( ) or ANTant@zimage.com
    Ant is currently not listening to any songs on his home computer.

  19. #39
    Ant
    Guest

    Re: Random disconnections from a Terayon TJ715x cable modem?

    On 10/4/2008 8:15 AM PT, Ant typed:

    >> If indeed you exchange cable modems on Saturday, that should further
    >> isolate the trouble for you. Remember to exchange the wall wart power
    >> adapter too.

    >
    > Yeah, I have the whole box, cable modem, and power AC (why do I want to
    > keep it?) to return. I haven't had any more disconnections and weirdness
    > so far since I last posted. I just hope the new modem isn't defected and
    > stuff. :P Funny how I got my cable bill yesterday so I will save a stamp
    > today by paying them in person later today.


    Oh and I think it is the modem because during those quick disconnections
    (1 second long), I can't ping 192.168.100.1 like I said in my original post:

    ....
    64 bytes from 192.168.100.1: icmp_seq=837 ttl=59 time=4.61 ms
    From 192.168.0.1 icmp_seq=838 Destination Host Unreachable
    From 192.168.0.1 icmp_seq=839 Destination Host Unreachable
    From 192.168.0.1 icmp_seq=840 Destination Host Unreachable
    From 192.168.0.1 icmp_seq=841 Destination Host Unreachable
    64 bytes from 192.168.100.1: icmp_seq=842 ttl=59 time=5.56 ms
    ....

    I don't think a problematic cable coax line would cause that? Would it?
    Sounds like a modem problem to me.
    --
    "We now go live to Ollie Williams in Channel 5 traffic chopper. What's
    scene?" --Tom Tucker. "Everyone looks like ants!" "That is probably
    because you're up so high." from Family Guy.
    /\___/\
    / /\ /\ \ Phil/Ant @ http://antfarm.home.dhs.org (Personal Web Site)
    | |o o| | Ant's Quality Foraged Links (AQFL): http://aqfl.net
    \ _ / Remove ANT from e-mail address: philpi@earthlink.netANT
    ( ) or ANTant@zimage.com
    Ant is/was listening to a song on his home computer: Kalm - Hound of
    Hell (ID: 176738)

  20. #40
    $Bill
    Guest

    Re: Random disconnections from a Terayon TJ715x cable modem?

    Ant wrote:
    > On 10/4/2008 1:56 AM PT, 1PW typed:
    >
    >> If indeed you exchange cable modems on Saturday, that should further
    >> isolate the trouble for you. Remember to exchange the wall wart power
    >> adapter too.

    >
    > Yeah, I have the whole box, cable modem, and power AC (why do I want to
    > keep it?) to return. I haven't had any more disconnections and weirdness
    > so far since I last posted. I just hope the new modem isn't defected and
    > stuff. :P Funny how I got my cable bill yesterday so I will save a stamp
    > today by paying them in person later today.


    If you own that modem, why return it ? If it at least works somewhat, it
    gives a semi-workable spare.

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