MOHAA Spearhead problem with online maps

[Bootsy]

hi all, I'm having a problem with such maps such as "berlin" when playing online. This happens with like 4 or 5 maps so far. I am not able to join the server. As it connects and the loading page (with the pic of the map) comes on for a split second and then I just get booted to the main menu with no error message or anything...its really frustrating and I hope someone out there knows the solution, thanx

 

[Terrahertz]

Firewall? Anitivirus?

 

[Bootsy]

I got it working by re-installing ...I hope not just for the time being. Yea I tried de-activating my antivirus and letting those ports thru the firewall but no luck. Re-installing did it thanks