“What worked was ensuring that both players have the game up and running BEFORE sending and receiving a coop invitation. That was the key thing.” Reddit · r/sniperelite · 2 years ago If you'd like, let me know: Are you on ? Does this happen in Public Matchmaking or Private Co-op ? Do you see a specific error code (like 12011)? cant connect to coop :: Sniper Elite 3 General Discussions
In your Steam Library, right-click Sniper Elite 3 > Properties > Installed Files > Verify integrity of game files . This fixes missing or corrupted data that prevents lobby handshakes. sniper elite 3 connection to the game failed top