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Thread: WOW Cable Modem Drops?

  1. #1
    Junior Member
    Join Date
    Jul 2000
    Posts
    15

    Unhappy WOW Cable Modem Drops?

    Ive been having problems with my cable modem dropping out lately. I cant figure it out. It will work for hours, the disconnect itself. The only way I can get it to reconnect is by resetting the modem itself. I ran the tcpip optimizer & heres some other info...

    The modem is a Webstar DPX100 & I am running the connection thru my Linksys Etherfast BEFsr41 router...

    Name
    WebSTAR DPX100
    Modem Serial Number
    SM0929680
    Cable Modem MAC Address
    00:40:7B:72:0B:24
    Hardware Version
    2.1
    Software Version
    1.0.5 r1.1.3 (dpx100-v105r113.bin)
    Receive Power Level
    7.90 dBmV
    Transmit Power Level
    45.00 dBmV
    Cable Modem Status
    operational
    -----------------------------------------------------------------
    Downstream Channel
    The data shown in the table below provides information about the signal coming from the network to your cable modem.

    Downstream Status
    Operational
    Channel ID
    7
    Downstream Frequency
    621000000 Hz
    Modulation
    QAM256
    Bit Rate
    2254438 bps
    Power Level
    7.88 dBmV
    Signal to Noise Ratio
    31 dB


    Upstream Channel
    The data shown in the table below provides information about the signal being transmitted to the network from your cable modem.

    Upstream Status
    Operational
    Channel ID
    3
    Upstream Frequency
    31500000 Hz
    Bit Rate
    307200 bps
    Power Level
    45.00 dBmV
    ----------------------------------------------------
    2004-12-13 16:32:50 information Got a map with the new UCD change count, and changed upstream parms
    2004-12-13 16:32:50 information Got a map with the new UCD change count, and changed upstream parms
    2004-12-13 16:26:09 notice Interface index:4 LinkUp
    2004-12-13 16:26:09 notice Interface index:3 LinkUp
    2004-12-13 16:26:09 notice Interface index:2 LinkUp
    2004-12-13 16:26:09 notice SNMP COLD_START(SNMP Nmaccess mode)
    2004-12-13 16:26:09 notice Cable Modem Status set to Registration Complete
    2004-12-13 16:26:09 information Locked Plan ID : 0 , Locked Frequency = 621000000 Hz
    2004-12-13 16:26:09 information Received REG-RSP from CMTS
    2004-12-13 16:26:08 information Sending Registration Request
    2004-12-13 16:26:08 information Processing Configuration File
    2004-12-13 16:25:55 information DHCP: IP complete
    2004-12-13 16:25:55 warning DHCP WARNING - Non-critical field invalid in response
    2004-12-13 16:25:55 warning DHCP WARNING - Non-critical field invalid in response
    2004-12-13 16:25:55 debug DHCP_coldstart() successfully
    2004-12-13 16:25:53 information Beginning ranging process. Initial Power=20.00 dBmV
    2004-12-13 16:25:52 critical No Ranging Response received -T3 time-out
    2004-12-13 16:25:51 critical No Ranging Response received -T3 time-out
    2004-12-13 16:25:50 critical No Ranging Response received -T3 time-out
    2004-12-13 16:25:50 critical No Ranging Response received -T3 time-out
    2004-12-13 16:25:50 information Beginning ranging process. Initial Power= 8.00 dBmV


    I think this is my problem...I had to restart right after this
    2004-12-13 16:25:50 information Got a map with the new UCD change count, and changed upstream parms



    2004-12-13 16:25:45 information Sync recovery loop is locked
    2004-12-13 16:25:32 information Scan Downstream Frequency...
    2004-12-13 16:25:29 error BPI FLASH: The Mfg CA certificate not found!
    2004-12-13 16:16:43 error BPI FLASH: The Mfg CA certificate not found!
    2004-12-13 16:11:12 error BPI FLASH: The Mfg CA certificate not found!
    2004-12-13 15:58:38 notice Interface index:4 LinkUp
    2004-12-13 15:58:38 notice Interface index:3 LinkUp
    2004-12-13 15:58:38 notice Interface index:2 LinkUp
    2004-12-13 15:58:38 notice SNMP COLD_START(SNMP Nmaccess mode)
    2004-12-13 15:58:38 notice Cable Modem Status set to Registration Complete
    2004-12-13 15:58:38 information Locked Plan ID : 0 , Locked Frequency = 621000000 Hz
    2004-12-13 15:58:38 information Received REG-RSP from CMTS
    2004-12-13 15:58:37 information Sending Registration Request
    2004-12-13 15:58:37 information Processing Configuration File
    2004-12-13 15:58:26 information DHCP: IP complete
    2004-12-13 15:58:26 warning DHCP WARNING - Non-critical field invalid in response
    2004-12-13 15:58:26 warning DHCP WARNING - Non-critical field invalid in response
    2004-12-13 15:58:25 debug DHCP_coldstart() successfully
    2004-12-13 15:58:22 critical No Ranging Response received -T3 time-out
    2004-12-13 15:58:22 information Beginning ranging process. Initial Power=17.00 dBmV
    2004-12-13 15:58:22 critical No Ranging Response received -T3 time-out
    2004-12-13 15:58:21 critical No Ranging Response received -T3 time-out
    2004-12-13 15:58:20 critical No Ranging Response received -T3 time-out
    2004-12-13 15:58:20 information Beginning ranging process. Initial Power= 8.00 dBmV
    2004-12-13 15:58:20 information Got a map with the new UCD change count, and changed upstream parms
    2004-12-13 15:58:18 information Sync recovery loop is locked
    2004-12-13 15:58:04 information Scan Downstream Frequency...
    2004-12-13 15:58:01 error BPI FLASH: The Mfg CA certificate not found!
    2004-12-13 14:55:26 critical Started Unicast Maintenance Ranging - No Response received - T3 time-out
    2004-12-13 14:53:31 information Got a map with the new UCD change count, and changed upstream parms
    2004-12-13 14:53:31 information Got a map with the new UCD change count, and changed upstream parms
    2004-12-13 14:49:11 critical Started Unicast Maintenance Ranging - No Response received - T3 time-out
    2004-12-13 14:10:50 error ToD request sent - No Response received
    2004-12-13 13:53:52 information Got a map with the new UCD change count, and changed upstream parms
    2004-12-13 13:53:52 information Got a map with the new UCD change count, and changed upstream parms
    2004-12-13 13:33:13 information Got a map with the new UCD change count, and changed upstream parms
    2004-12-13 13:33:13 information Got a map with the new UCD change count, and changed upstream parms
    2004-12-13 13:11:27 critical Started Unicast Maintenance Ranging - No Response received - T3 time-out
    2004-12-13 13:02:55 information Got a map with the new UCD change count, and changed upstream parms
    2004-12-13 13:02:55 information Got a map with the new UCD change count, and changed upstream parms
    2004-12-13 12:35:35 information Got a map with the new UCD change count, and changed upstream parms
    2004-12-13 12:35:35 information Got a map with the new UCD change count, and changed upstream parms
    2004-12-13 12:07:27 information Got a map with the new UCD change count, and changed upstream parms
    2004-12-13 12:07:27 information Got a map with the new UCD change count, and changed upstream parms
    2004-12-13 05:47:03 information Got a map with the new UCD change count, and changed upstream parms
    2004-12-13 05:47:03 information Got a map with the new UCD change count, and changed upstream parms
    2004-12-13 05:32:42 critical Started Unicast Maintenance Ranging - No Response received - T3 time-out
    2004-12-13 04:24:26 information Got a map with the new UCD change count, and changed upstream parms
    2004-12-13 04:24:26 information Got a map with the new UCD change count, and changed upstream parms
    2004-12-13 04:10:40 notice Interface index:4 LinkUp
    2004-12-13 04:10:40 notice Interface index:3 LinkUp
    2004-12-13 04:10:40 notice Interface index:2 LinkUp
    2004-12-13 04:10:40 notice SNMP COLD_START(SNMP Nmaccess mode)
    Last edited by Liquid_ME; 12-13-04 at 06:23 PM.

  2. #2
    Junior Member
    Join Date
    Jul 2000
    Posts
    15
    Heres my routers settings:

    Obtain an IP automatically

    MTU: Enable Size : 1400


    Network Setup
    Router IP Local IP Address: 192 168.1.1.
    Subnet Mask: 255.255.255.0
    Network Address
    Server Settings (DHCP) Local DHCP Server: Enable
    Start IP Address: 192.168.1.100
    Number of Address: 50
    DHCP Address Range: 192.168.1.100 to 192.168.1.149
    Client Lease Time: minutes (0 means one day)
    --------------------------------------------------

    MAC Address clone : Enable
    DDNS Service: Disable

  3. #3
    Junior Member
    Join Date
    Jul 2000
    Posts
    15
    Anyonehave any ideas? I notice it happens most when I am downloading large files...

  4. #4
    Regular Member buckifan's Avatar
    Join Date
    Jan 2004
    Location
    Buckeye Nation
    Posts
    133
    I also have WOW. A good starting point would be a replacement CM. Call tech support and explain what is happening.

    The message "Got a map with the new UCD change count, and changed upstream parms" means that the CMTS(headend) has told your CM to change some upstream parameters and the CM has complied but the changes were not what the CMTS expected. The CM is now offline and a reset temporarily fixes things.

    The signal levels are OK.

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