So the problem is can't connect to any game online (search result gives me that there are no games online) and can't join my friends games. I can recieve an invitation, but after loadscreen game tells "connection with game host gase been lost" or something like that. And my friends can't get any notifications from me nor invitation from LCTOO. Game itself runs fine (single player) and other games as well...
Some Steam related problems?? Any suggestions?
(PC, Steam)