81000306 Error in MSN Messenger

I have MSN messenger and I am running Windows Vista on my computer. I am having issues with my messenger. Whenever I try and sign in it gives me an error message the error code 81000306. What does that mean? Please help me?

Solutions:

• Make sure you are connected to the Internet.
• Just check if there is any service issue
• Clear the proxy settings in MSN Messenger.
  
  • Start Messenger.
  • On the Tools menu, click Options.
  • Click Connection in the left navigation pane.
  • Click Advanced Settings in the Connection Settings section.
  • Delete the content of the SOCKS field.
  • Click OK two times to save the settings.
• If you are using Windows Vista, disable the Auto Tuning Networking feature:
  
  • Click Start, click All Programs, click Accessories, and then right-click Command Prompt and choose Run as administrator.
  • Click Continue when Windows requests permission to continue.
  • At the command prompt, type the following command, and then press ENTER:
    
    Code:

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    netsh interface tcp set global autotuninglevel=disabled

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    NOTE: If you are still unable to sign into Messenger then please re-enable that feature again using the below code
    
    Code:

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    netsh interface tcp set global autotuninglevel=normal

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• If you are using Windows Vista and you also use a router then visit the router's manufacturer’s website to update for the latest firmware.