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  1. #1
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    DSL on XP Problem (WinXP Pro v 5.1)

    I have three PC's connected through a router to a local ISP. Two of these
    PC's, a Dell Laptop and my wife's PC both run Win2K. My PC, a business PC,
    runs WinXP Pro. The XP machine has download via the DSL of about 2/3 the
    speed other two. All three go through the same DSL modem and router; the laptop
    goes through a wireless connection to the router (802.11b).

    I've tried the Tweek tests on DSLREPORTS.COM and that indicates that TCP/IP
    settings are OK on all three machines.

    I've also set the QoS Packet Scheduler on the XP machine to "0", and enabled it.
    In addition, I tried connecting the XP machine directly to the DSL modem to see if
    the router might be the problem. The result was the same.

    I'm just wondering if anyone has an idea what could be going on. By the
    way, the XP machine did formerly clock at the same speed as the others.
    Could this be a conflict in the OS somewhere, or a 'partially' corrupted TCP/IP?

    Thanks a lot for any thoughts.

    --Bob Harris

    <img src=/S/confused.gif border=0 alt=confused width=15 height=20>
    -Bob Harris
    "Seek Simplicity, Then Mistrust It!"


  2. #2
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    Re: DSL on XP Problem (WinXP Pro v 5.1)

    I'm going to add a little more to this thread.... My son is a teacher in an MCSE program and also an MCSE himself. He tells me that the bandwidth on XP is just not as good as Win2K. Of his various machines, all of those with XP are less robust on the DSL side of things....

    He's suggesting that if I'm bothered I should go back to Win2K or go to Linux. As time goes by, he's becoming more and more enamored with Linux....

    --Bob Harris
    -Bob Harris
    "Seek Simplicity, Then Mistrust It!"


  3. #3
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    Re: DSL on XP Problem (WinXP Pro v 5.1)

    have you uninstalled and reinstalled TCP/IP?
    Did you enable QoS or disable it?
    What programs did you use to test the speed?

    No offense, but i take the word of an MCSE with a grain of salt... and if you want ot use linux, go ahead. It's not better than windows, except for hard core geeks who want to compile their kernels everything they need to make changes...

  4. #4
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    Re: DSL on XP Problem (WinXP Pro v 5.1)

    Further to Mary's suggestions, I don't see where XP is any less effective than Windows 2000 with TCP/IP and networking. They're built on the same kernel, and in fact XP is version 5.1, where Windows 2000 was version 5. Perhaps a registry tweak to optimize throughput would help? Some people note marked increases with these registry modifications. The basic reason is that each ISP is a bit different, and Windows comes out of the box in one standard configuration that could tune itself - but it also might not do so well at that tuning.
    -Mark

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    Re: DSL on XP Problem (WinXP Pro v 5.1)

    Hi Mary,
    No, I haven't done the uninstall and reinstall TCP/IP, but that's a good suggestion. I've had it work before, but in those cases it had just quit. Good suggestion, I'll try it.
    Yes, I have QoS set to "0" and enabled. I'm wondering if perhaps it is still doing something untoward, however.
    To test the speed, I've done two different things: 1) DSLREPORTS, has a speed test. It records this PC at about 930 Kb/s. 2) also, my ISP has a 10 Meg test file that I try downloading and looing at the KBS readout. On this PC it sits at about 115 or so, more or less. The Win2K PCs sit at about 160.

    I agree with your comment about the MCSE, even though we're talking about my son...No offense. As for Linux, I have no plans to go to that. I'm running a business with this PC, not a laboratory.

    Thanks a lot for your thoughts... They are most sincerely appreciated.

    --Bob
    -Bob Harris
    "Seek Simplicity, Then Mistrust It!"


  6. #6
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    Re: DSL on XP Problem (WinXP Pro v 5.1)

    Thanks for your comments, Mark. I have tried some the registry tweeks suggested in the Spped Guide. The DNS and the RWIN, I have adjusted. However, there are others that I should try and will. Thanks a lot, as always, for your suggestions.

    What you suggest about WinXP v. Win2K sounds logical enough. It's just that I've heard more than one person say the same thing, and now I'm seeing it. This machine, only recently started slowing down a bit. This leads me to wonder if a driver somewhere is interfering, or, as Mary suggests, that the TCP/IP may need to be reinstalled.

    Thanks, again.

    --Bob
    -Bob Harris
    "Seek Simplicity, Then Mistrust It!"


  7. #7
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    Re: DSL on XP Problem (WinXP Pro v 5.1)

    Bob, here's hoping that you fix it without reinstalling anything at all - OS or the TCP/IP stack (wow, whatta pain that one is). I did want to clear up one misconception that seems rampant on the net these days regarding QoS - it's not utilized unless a program is coded to take advantage of it, and to my knowledge it's not in use nearly anywhere. Yet. Still, it can't hurt to knock down the reserved bandwidth, just in case.

    And yes, even though XP is only a point-release to Win2000, it sure does have a few quirks that its older brother didn't. I've had stunning success with networking, but it's limited to use at home, where I spend decidedly much less time doing so. My employer only recenlty certified Win2000 as a platform, so I don't see XP on the horizon any time soon.

    A final thought for you is to look into firewalls or other "helper" applications that may be choking your connection. I believe anything that puts itself between you and the destination has the potential to slow things down somewhat, and I've had experience with ZoneAlarm in particular doing just that. Worth looking at.

    Cheers,
    -Mark

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    Re: DSL on XP Problem (WinXP Pro v 5.1)

    I installed a program called NET TURBO helped increase my speed on My XP Pro

  9. #9
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    Re: DSL on XP Problem (WinXP Pro v 5.1)

    What is Net Turbo? Where did you find it?
    Thanks.

    --Bob
    -Bob Harris
    "Seek Simplicity, Then Mistrust It!"


  10. #10
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    Re: DSL on XP Problem (WinXP Pro v 5.1)

    Edited by <font color=red>WyllyWylly</font color=red> to add URL code. See the Quick Guide.[/i]

    Bob - check this out: http://cable-dsl.home.att.net/index.htm. Really good stuff on cable/dsl tuning.

    Good Luck

    Joe
    Joe

  11. #11
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    Re: DSL on XP Problem (WinXP Pro v 5.1)

    Hi Joe,
    Thanks for the link. I've looked at John Navas' site and it is really good.

    I managed to resolve the problem with XP's DSL speed and am describing it here in the chance that it might help someone else....

    I began experimenting further with the RWIN settings. I noticed on the dslreports site that as the window got bigger the number retries, or retransmissions also increased. I tried lowering the window size until these disappeared. That setting was in the range of 20,000. Currently it's set at 18,000. The speed almost equaled, but not quite, the Win2K machines.

    Then I acquired Ontrack System Suite 4.0 and did some housecleaning on the system. Also, I uninstalled several applications that I no longer use. After the cleaning and removal and resizing of the RWIN, the XP machine is now running its DSL at the same rate as the Win2K machines.

    I suspect that the setting on the RWIN is experimental and will probably be different on different machine / ISP combinations. I can say that the recommendations to willy-nilly increase the RWIN are not always correct.

    Thanks a lot for continuing to think about this question. Your thoroughness and follow-through are truely appreciated.

    --Bob
    -Bob Harris
    "Seek Simplicity, Then Mistrust It!"


  12. #12
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    Re: DSL on XP Problem (WinXP Pro v 5.1)

    Hey Bob - you're welcome. Glad you solved it.

    Joe
    Joe

  13. #13
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    Re: DSL on XP Problem (WinXP Pro v 5.1)

    How do you uninstall and reinstall TCP/IP?

  14. #14
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    Re: DSL on XP Problem (WinXP Pro v 5.1)

    This article applies to Windows 2000 domain controllers, but should work the same under XP:
    <UL><LI>Q299451: HOW TO: Remove and Reinstall TCP/IP on a Windows 2000 Domain Controller[/list]HTH,
    -Mark

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