This error most commonly appears when you have no connection to the internet.

If your internet connection is working, you may have an issue with your firewall or proxy server. First, make sure that your firewall is configured to Allow Google Talk; we've provided instructions for some of the more popular firewall applications below:

• McAfee Personal Firewall
• Norton Personal Firewall
• PC-Cillin Internet Security
• Tiny Personal Firewall
• ZoneAlarm

A proxy server requiring a proxy username and password could also cause this problem. To configure your proxy:

1. Open Google Talk.
2. Click Settings .
3. Highlight Connection along the left side of the dialogue box.
4. Select Use the following proxy .
5. Check the box next to Proxy requires Authentication .
6. Enter the proxy username and password.
7. Click OK .

Finally, your network administrator may have disabled Google Talk on your network. If you continue to see this error, please contact your network administrator.