No. Yahoo has its chat server open on many ports(so that it works through most of firewalls). And I have noticed many times that windows client, if it fails for some reason to connect on 5050 port, it tries ftp, telnet, even http ports. it must be some temporary problem on port 5050 that too on server you might be trying to connect. Yahoo chat servers are generally csNN.msg.sc5.yahoo.com where NN is number.

Amish.

Philip S Tellis wrote:

...

It appears that the port number for yahoo messenger has changed. While

windows clients don't have a problem, the linux client has the port number written in its .ymessenger/preferences file