My guess is that the necessary ports are being blocked by your firewall, proxy, or router.
In order to connect to Google Talk and start sending IMs, you'll need to enable TCP connections to talk.google.com on port 5222, or on port 443. From What ports does Google Talk require?
You can test to see if you can connect to talk.google.com, port 5222 with the following command in a terminal:
Code:
telnet talk.google.com 5222
A successful connection will look like this:
Code:
telnet talk.google.com 5222
Trying 72.14.253.125...
Connected to talk.l.google.com.
Escape character is '^]'.
^Connection closed by foreign host.
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