slt a tous j'ai un souci de connexion avec MSN 
j'ai desactivé le Pare-feu etc...
mais rien a faire
voila ce que ca me marque:
Error 81000306: You cannot sign in to Windows Live Messenger
You may not be able to sign in because of one of several problems, such as your proxy settings, the DNS cache, or a firewall (A security feature designed to help protect a computer from unauthorized external access. It can be hardware, software, or both.) . Before working through the steps below, confirm that you're connected to the Internet by visiting another website.
To troubleshoot the problem:
Clear the Windows Live Messenger proxy settings
Start Messenger.
On the Tools menu, click Options.
Under Connection, click Advanced Settings.
Delete the entries under SOCKS.
Click OK, and then click OK again.
If your computer is running Windows XP, clear the DNS resolver cache
On the taskbar, click Start, and then click Run.
Type cmd, and then click OK.
At the command prompt, type ipconfig/flushdns, and then press ENTER.
If you're still unable to sign in to Messenger
Check your firewall settings:
Go to the MSN Web Messenger website.
Click Start MSN Web Messenger, and then try to sign in.
If you can sign in to MSN Web Messenger, but Windows Live Messenger still can't access the Internet, Windows Live Messenger may be blocked by a firewall. You may need to add MSNmsgr.exe to your firewall's allow list. See your firewall's documentation or website for more information on how to add MSNmsgr.exe to your allow list.
A dial-up connection may be timing out. Wait a few minutes, and then try to sign in again.
If your computer is part of a corporate network, contact your network administrator to make sure that the network allows access to the Messenger service.
Make sure your antivirus or antispyware programs don't conflict with Messenger.
Related topics
Get started with Windows Live Messenger
Troubleshoot connectivity problems
Customize sounds
Install the Windows Live OneCare safety scanner
Share games and activities
