I've tried that already, but no succes. And I called monday, but they couldn't help me.

But the game always worked on this computer with the same configuration. And I have already tried to play with AVG disabled, but that also wasn't working.
Before I call, I'll try to run it on another pc as Madcatx said.

Unfortunately the modem reset wasn't helpful.
I'll contact my ISP (KPN).

Hi,

Everytime I want to join a server, I get an error message 'Cant receive UDP packet' ('Host ontving je UDP pakket niet' in Dutch). I have this problem for a week now, never had this problem before.
I don't know what to do now, so I hope you could help me with this problem!

Jurgen