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Thread: Adequate speed on speed tests, but bad download speeds. Please help

  1. #1
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    Adequate speed on speed tests, but bad download speeds. Please help

    I run tests on speedtest.com and get what I should from my ISP (1500 kbps dl, 250 kbps ul, 120 ms ping), but when going to Youtube, for example, or downloading files from fast hosts like Rapidshare, my download speeds are pitiful. The Youtube videos take ages to load and the Rapidshare downloads go at a max of 20 kbps, often dropping to 0 and then starting again at 5-ish before rising again. I also have problems updating Steam, even though I have configured the port forwarding on my router.

    My network is setup as follows: a Motorola SBG900 modem/router is my gateway to the internet, which I use to connect to a desktop via cable and a laptop wirelessly (the laptop is right by the modem, so there's no chance of it being a low signal problem). I only use Steam on my laptop, so I'm not sure if there could be a problem with me using it wirelessly.

    Please help, thanks in advance

  2. #2
    Elite Member trogers's Avatar
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    What speed did you pay your ISP to give you?

    Post your TCP Analyzer report.
    "Contentment is not the fulfillment of what you want, but is the realisation of how much you already have" - anon

  3. #3
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    Quote Originally Posted by trogers View Post
    What speed did you pay your ISP to give you?

    Post your TCP Analyzer report.
    « SpeedGuide.net TCP Analyzer Results »
    Tested on: 01.15.2008 23:18
    IP address: 201.141.xx.xxx

    TCP options string: 0204056401010402
    MSS: 1380
    MTU: 1420
    TCP Window: 16560 (multiple of MSS)
    RWIN Scaling: 0
    Unscaled RWIN : 16560
    Reccomended RWINs: 63480, 126960, 253920, 507840
    BDP limit (200ms): 662kbps (83KBytes/s)
    BDP limit (500ms): 265kbps (33KBytes/s)
    MTU Discovery: ON
    TTL: 112
    Timestamps: OFF
    SACKs: ON
    IP ToS: 00000000 (0)

    This is from the laptop by the way, I don't have access to the desktop right now, will post tomorrow.

    It's meant to be a 1.5 mBps connection. I get good results with speed tests, it's only with actual downloads and such that I get problem. Oddly, with Juice (podcast downloader), I get more than decent download speeds (180 kBps). I'm going to try downloading something from rapidshare to see if my laptop has any problems downloading.

    EDIT: Nope, rapidshare goes at 5 kBps as on my desktop.

    BTW. In my first post, kbps is supposed to be kBps.

  4. #4
    Elite Member trogers's Avatar
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    Try the following with TCP Optimizer and see if your MTU increases:

    General Settings tab:
    Custom settings - check
    Modify All Network Adapters - check
    network adapter selection - your NIC
    MTU 1500
    TTL - 64
    TCP Receive Window - leave blank
    MTU Discovery - Yes
    Black Hole Detect - No
    Selective Acks - Yes
    Max Duplicate ACKs - 2
    TCP 1323 Options:
    Windows Scaling - uncheck
    Timestamps - uncheck

    Advanced Settings tab:
    Max Connections per Server - 10
    Max Connections per 1.0 Server - 20
    LocalPriority - 1
    Host Priority - 1
    DNSPriority - 1
    NetbtPriority - 1
    Lan Browsing speedup - optimized
    QoS: NonBestEffortLimit - 0
    ToS: DisableUserTOSSetting - 0
    ToS: DefaultTOSValue - 80
    MaxNegativeCacheTtl - 0
    NetFailureCacheTime - 0
    NegativeSOACache Time - 0
    LAN Request Buffer Size - 32768
    Then select "Apply Changes" and reboot to take effect

    After reboot, post a new TCP Analyzer report.
    "Contentment is not the fulfillment of what you want, but is the realisation of how much you already have" - anon

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    Thanks a lot. I need to go now, but will try tomorrow and post results I hope it works.

  6. #6
    Elite Member trogers's Avatar
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    Quote Originally Posted by mike130 View Post
    Thanks a lot. I need to go now, but will try tomorrow and post results I hope it works.
    The settings I gave seek only to increase MTU. When that is done, we can then give you new settings for your bandwidth based on your new MTU value.
    "Contentment is not the fulfillment of what you want, but is the realisation of how much you already have" - anon

  7. #7
    Second Most EVIL YARDofSTUF's Avatar
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    Youtube and rapidshare can be very slow at times as well, not good places to judge.

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    Quote Originally Posted by trogers View Post
    The settings I gave seek only to increase MTU. When that is done, we can then give you new settings for your bandwidth based on your new MTU value.
    « SpeedGuide.net TCP Analyzer Results »
    Tested on: 01.16.2008 16:43
    IP address: 201.141.xx.xx

    TCP options string: 020405640103030e01010402
    MSS: 1380
    MTU: 1420
    TCP Window: 1073725440 (NOT multiple of MSS)
    RWIN Scaling: 14
    Unscaled RWIN : 65535
    Reccomended RWINs: 63480, 126960, 253920, 507840
    BDP limit (200ms): 42949018kbps (5368627KBytes/s)
    BDP limit (500ms): 17179607kbps (2147451KBytes/s)
    MTU Discovery: ON
    TTL: 48
    Timestamps: OFF
    SACKs: ON
    IP ToS: 00000000 (0)

    New results. Will post with other comp soon.

    Quote Originally Posted by YARDofSTUF View Post
    Youtube and rapidshare can be very slow at times as well, not good places to judge.
    I'm not sure it's their problem. It took me a couple of minutes, for example, to download the optimizer (500 Kb file).

  9. #9
    Elite Member trogers's Avatar
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    Try the following with TCP Optimizer:

    General Settings tab:
    Custom settings - check
    Modify All Network Adapters - check
    network adapter selection - your NIC
    MTU 1420
    TTL - 64
    TCP Receive Window - 31740
    MTU Discovery - Yes
    Black Hole Detect - No
    Selective Acks - Yes
    Max Duplicate ACKs - 2
    TCP 1323 Options:
    Windows Scaling - uncheck
    Timestamps - uncheck

    Advanced Settings tab:
    Max Connections per Server - 10
    Max Connections per 1.0 Server - 20
    LocalPriority - 1
    Host Priority - 1
    DNSPriority - 1
    NetbtPriority - 1
    Lan Browsing speedup - optimized
    QoS: NonBestEffortLimit - 0
    ToS: DisableUserTOSSetting - 0
    ToS: DefaultTOSValue - 80
    MaxNegativeCacheTtl - 0
    NetFailureCacheTime - 0
    NegativeSOACache Time - 0
    LAN Request Buffer Size - 32768
    Then select "Apply Changes" and reboot to take effect

    What brand and model is your router and modem?
    "Contentment is not the fulfillment of what you want, but is the realisation of how much you already have" - anon

  10. #10
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    Motorola SBG900. I use it as both wireless router and modem, since I only have 1 desktop and both my laptops have wireless cards.

    Will do, thanks.

  11. #11
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    Doing all that hasn't really helped, the internet is still very slow. I highly doubt it is related to my laptop settings as I have used it in other places other than my home and it works perfectly fine there.

    I also seem to have a problem port forwarding. I forward the ports on router, but they aren't open.

  12. #12
    Elite Member trogers's Avatar
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    Quote Originally Posted by mike130 View Post
    Doing all that hasn't really helped, the internet is still very slow. I highly doubt it is related to my laptop settings as I have used it in other places other than my home and it works perfectly fine there.

    I also seem to have a problem port forwarding. I forward the ports on router, but they aren't open.
    Do a tracert to www.yahoo.com and post.
    "Contentment is not the fulfillment of what you want, but is the realisation of how much you already have" - anon

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