Proxy error MSN Live Messenger

Hello there,
I have a problem with msn messenger and I do not know how I should solve.

Since yesterday I can not log onto MSN Live Messenger.
Because he can not log in I press the "Troubleshooting" Then he says that there is a problem with the proxy server and the key ports.
I have nothing to change my internet settings when this happened.

Can someone help me here please?

Have tried
via MSN, to restore (repair feature works)
ipconfig / flushdns
Messenger (update)
Restore tried via LAN icon does not work,
Router-reset not working

Problem light in msn itself, he even creating problem with the settings, Lan reset also helps sometimes (right click on LAN icon, and then recover). And few times that msn problem and restore press is saying again.

also Look at your antivirus / firewall, disable that once the can that there is an update and that there are certain ports blocked.

There is one solution, Those who are using router so the solution is to forward ports. I think you all should know how to. So if you forward your ports msn will work again. thankyou

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.) .

To troubleshoot the problem: see here http://help.live.com/help.aspx?proje...r_81000306.htm