Me and my friend get disconnected 1 minute after joining each other's lobby with P2P error in the chat. Im playing on Windows 10, friend is playing on Mac if that matters.
I have the nessesary ports forwarded and we both checked the integrity of our steam files. We still cant play with each other for longer than 1 minute. After the DC happens the lobby disappears from server list even if one of us is still there hosting it. Turning on -nothreading and -nosteam didnt really help either.