This is recently installed Windows Vista Basic based Acer Aspire 5050. Everything is working fine of this except Live Messenger and Yahoo IM. Though my Internet is working fine, I am not able to get online on these instant messengers. However when I try connecting with Trillian, I can do it easily without any problems. Later when I ran live messenger diagnostics, it says my firewall might be blocking the connection and the issue is something related to Key Ports.
But as far as I can see it is already allowed through my Firewall. Now the problem is I don’t know how to open port 1863. Can someone please help me.
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