I can not connect to ANY server. I tried connecting to the best ping, zero players servers.
I tried to play with my friend on his private server, and I keep getting this screen below: 
When I click on "Play Online" I get the exact error as this reference image: 
I can play multiplayer just fine and connect to servers easy-peasy. At first Malware Bytes was blocking the win32 launcher, but after excusing it I still can't play.
When I join my friend, I see him playing in my background. When I die after going down I can see him perfectly fine running around and getting hit.