By default, the Caylix firewall blocks MSN Messenger connections. You can request it to be opened; click here for more information.

If MSN has been enabled but still isn't working, then you may need to update your proxy settings. Here are the steps:

1. Open MSN Messenger
2. Open Tools menu (alt-T) and choose Options
3. Choose Connection
4. Click the Advanced Settings button
5. Verify that HTTP proxy server is showing up (proxy.caylix.com)
6. Enter your @caylix.com username and password.

Please view the attached screenshot to see what the Settings page looks like.