Game unable to join friend's lobby

4.5

Invites fail or you get a "Lobby Full" or "Connection Error" when joining.

Symptoms
  • "Unable to join"
  • Timed out
  • Friend appears offline
Possible Causes
  • NAT Type mismatch
  • Version mismatch
  • Firewall

Step-by-Step Fix

1

Check Game Versions

Ensure both you and your friend have the latest update installed.

2

Check NAT Type

If one of you is "Strict", joining will be very difficult. Aim for "Open" or "Moderate".

3

Restart Both Games

Clears any stale session data.

When to See a Technician

Try having a third friend host the lobby, as they might have a better NAT configuration.

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