Sorry if it's posted again.

 

Every time i run Modern Warfare 2 in multiplayer mode my router just loses connection with my PC and also internet connection disappears.

I never had this problem again. Anyone knows any solution? Thank you everyone in advance.

A common problem with the Thomson TG Series routers.This happens because the router firewall blocks ports and cannot be disabled since the router's interface doesn't work.

Those reboots are actually caused by those routers UPnP

Set the router's firewall to the minimum level (it won't disable, but it won't block so much either) and disable UPnP

I have exactly the same router, however I didn't notice any problem. Visit portforward.com

I did everything and still problem stays. I tried updating router's firmware and router was rejecting the update, i guess i need a new router. Thanx anyway.