Furthermore, ensure your graphics drivers are fully updated. Outdated drivers can cause performance spikes and desyncs that result in connection timeouts, particularly during the "Loading Lobby" phase.
Wait for the verification process to finish, restart your client, and load the game. 3. Launch the Game Directly via the Executable
Now that we've identified the possible causes, let's move on to the troubleshooting guide. Follow these steps to resolve the "connection to the game failed" error in Sniper Elite 3:
: Set the game to always run with high privileges. Right-click SniperElite3.exe folder), select Properties Compatibility , and check Run this program as an administrator Network & Connectivity Solutions Check NAT Type : For smooth multiplayer, your NAT type should be sniper elite 3 connection to the game failed top
Sniper Elite 3 uses peer-to-peer (P2P) networking. This means one player acts as the server. If you are trying to connect to a friend who has a Strict NAT, you will always get the "Connection failed" message. Have the friend who cannot connect try hosting the lobby instead. If you are the one hosting and your friend cannot join, invite them to your game. If that fails, ask them to host and send you the invite.
: Right-click Sniper Elite 3 in your Steam Library, select Properties > Local Files , and click Verify Integrity of Game Files . This replaces missing or corrupted data that may prevent a connection.
Use third-party trackers like DownDetector to see if Steam’s community or matchmaking servers are experiencing outages. Furthermore, ensure your graphics drivers are fully updated
Creating a copy of the executable and setting it to "Always run as administrator" has resolved persistent co-op issues for some players. 2. Network Configuration and NAT Type
Ensure that both the game launcher and the main executable are allowed through your firewall. On PC, manually add SniperElite3.exe (found in the game's /bin folder) to your Windows Firewall allowed apps .
To ensure an "Open" NAT type, forward the following ports in your router settings: TCP: 8766, 27010, 27015-27016, 27036 UDP: 8766, 27010, 27015-27016, 27031-27036 Right-click SniperElite3
You and your friend must have exactly the same game version and the same DLC pack ownership.
: In Steam, right-click Sniper Elite 3, select Properties > Installed Files , and click Verify integrity of game files to repair corrupted data.