This is a common sight that when playing Counter Strike or Counter Strike Source, we get to see “WARNING: Connection Problem” written on the top right corner of the screen. This is a problem faced by many including one of our readers.
This is purely a network or connection problem that occurs when you have lost your connection with your server. The problem does not have a permanent or definite fix for it but then also you can do following things when you encounter this:
• Check if the firewall is not blocking steam or half-life.
• Make sure you are not running any background process that consumes internet bandwidth.
• Make sure the settings you made in network settings are correct.
• Reboot the PC.
• Restart the internet by restarting the modem.
• Re-install the game.
The problem is temporary and depends on your network and can be removed if your network is properly connected.