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Thread: Tweaking 100 Mbps connection

  1. #1
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    Question Tweaking 100 Mbps connection

    I recently signed up for Shaw Nitro in Saskatoon which is 100 Mbps down / 5 Mbps up.

    I have XP, Vista & 7 running on 3 separate PC's (upgrades pending).

    I am able to download from Usenet (Supernews) at 11.05 MBps (88.4 Mbps). Shaw suggested I run a TCP Optimizer but the one on this site only goes to 20,000 Kbps (19.53 Mbps). The servers I am downloading from can handle far more than 100 Mbps so that is not the bottleneck.

    I am willing to accept that 88.4% of my connection is pretty good, but I want to make sure that my OS's and there settings are not the limiting factor. What settings do you suggest I do for these OS's to get that last bit of bandwidth out of my connection.
    I think I've done enough conventions to know how to spell Melllvar.

  2. #2
    Administrator Philip's Avatar
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    For Windows XP, just use the TCP Optimizer. Even with the slider at 20Mbps, the RWIN buffer should be able to handle up to 100Mbps provided the latency is not excessive.

    For Vista / Windows 7 you'd have to read this: http://www.speedguide.net/read_articles.php?id=2574 ... There is also a patch you can use. For 100Mbps, you may want to set the "autotunninglevel" to "experimental", that allows for very large TCP Window values.

    Remember that non-business lines are usually shared between users, especially on cable. The bottleneck may not be your end of the connection. Even if Shaw can provide 100Mbps for every user currently using the line, there are few servers that can handle 100Mbps per client.

    A TCP Analyzer report can show your current settings, as seen from servers.

  3. #3
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    The tweaking may have helped a bit, it goes pretty fast now. About 8 Mbps in peak hours and 11.5 Mbps on non-peak hours. In late January they are going to redo the fiber hardware and it should help even more.
    I think I've done enough conventions to know how to spell Melllvar.

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