Losing entire internet connection when searching for servers

This might not be the games fault in general and rather my internet connection, but it happens almost everytime when i try finding searching for games in Multiplayer. Some rare times i manage to get in game and have a great time.

It might be something to do with my router settings or something, but anyone here being a real internet wiz that can give me a couple of pointers on how to something about it? It happens on TF2 to but generaly only the first server i join.

Old post I see, but I am having this exact problem too. Have a few seconds to find a server and if I'm not fast enough I lose my internet connection. Cant switch to Blitz because I guess it takes too long and it loses internet again. Also have this with TF2. Anyone know how to fix it?

Either try changing Steam's caferate key: https://support.steampowered.com/kb_art ... -YUOC-6922

or look in your router's firewall settings for options related to UDP flood defence and try turning it off, or the SPI firewall if it has one. If that doesn't work just have a play around with the various settings in the firewall (make a note of what they were set to originally).