Live Messenger: how to fix error 81000306

6a00d83452791169e200e54f09eca68833-800wiI’m currently testing the first public beta of Windows 7 on a desktop and a notebook, so I installed Live Messenger through the official Live installer provided from Microsoft as optional pack of the operating system. While there wasn’t problems on the notebook (connected to the LAN via Wi-fi), the desktop gived me 81000306 error trying to connect to Messenger service. After a lot of tests, including activation of uPNP on the router and forwarding the typical Messenger ports to the desktop’s IP, I finally discovered that the problem was in a feature of Windows 7 (also included in Windows Vista), the auto tuning of TCP stack. To disable this feature (that seems to be also the cause of network slowness on some LAN), you’ve to execute a simple command as Administrator:

  • click on the Windows logo in the bottom-left corner of the screen (the old “start” menu);
  • type CMD.EXE and wait a second: the cmd.exe program will appair in a list;
  • right-click it and choose “Run as Administrator”, then confirm the action in the request that will appair;
  • you’ll see a black window; type the following command: netsh int tcp set global autotuninglevel=disabled
  • now just close the window and try to connect with Windows Live Messenger (it shouldn’t be necessary to restart the computer).

Note 1: I suspect that this problem is linked to my hardware (a Netgear DG834G router and a Atheros PCIE Gigabit LAN, on a ASUS M2A-MX motherboard).

Note 2: If you want to restore the auto tuning feature, you’ve to repeat the above process with the following command: netsh int tcp set global autotuninglevel=normal

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This content was posted Wednesday 14 January 2009 on 1:11 pm in category Apps, Tricks. You can follow the comments in this article with its dedicated feed in RSS 2.0. Here you can leave an answer. Pinging is not enabled.

14 commenti

  1. Jean said:
    January 16th, 2009

    I had error 81000306 running WLM 2009 inside Windows 7 build 7000 (in VMWare virtual machine)
    after setting autotuninglevel=disabled I can connect to my MSN account.
    Thanks for the tip

  2. Djapeninjo said:
    January 19th, 2009

    I don’t understend, where i should type cmd!!! in RUN?
    When i did that,no list was appear neither opportunity to choose “run as administrator”!!!
    Can you explain me in step by step mode? Plese!

  3. riccardo said:
    January 19th, 2009

    Djapeninjo, the new “start” menu in Windows 7 (already seen in Vista) has a text search label on the bottom (with focus by default when the start menu is open), if you type something Windows will search programs and documents for it and it will list results in the menu itself.

  4. Djapeninjo said:
    January 19th, 2009

    Thanks riccardo,i tried that but i dont have that search label.Is there any other way to disable auto tuning TCP stack,any other entrance?

  5. riccardo said:
    January 19th, 2009

    Are you using Windows 7?

  6. Djapeninjo said:
    January 19th, 2009

    Yes. I found a mistake!!!!!!!!!
    Thanks a lot riccardo!!!
    You are great!!! :) :)

  7. riccardo said:
    January 19th, 2009

    You’re welcome :)

  8. Towarscke said:
    April 28th, 2009

    Thank you… It is just work..

  9. DC said:
    May 19th, 2009

    same problem

    merci =)

  10. Craig said:
    May 29th, 2009

    Works for me, thanks for this, it was driving me crazy

  11. Ömer Faruk said:
    June 28th, 2009

    Hi

    Djapeninjo said:
    Yes. I found a mistake!!!!!!!!!
    Thanks a lot riccardo!!!
    You are great!!!

    But I don’t found my mistake…!!
    Riccardo can you help me.?

  12. helen carriere rousseau said:
    November 2nd, 2009

    hi am having trouble to get my messange on taggeds n web site please can you help me thank you i get losts of errore in my staff on site helen carriere rousseau

  13. Ben said:
    November 26th, 2009

    Fixed it. Thanks!

  14. Ahmad said:
    February 8th, 2010

    thank you very much, I was having a headache.

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