If you’re struggling to enjoy Gotham Knights due to a ‘Failed to Join Session’ error, you’re not alone. Here’s how to fix it:

In our time with Gotham Knights, we encountered more than our fair share of errors. Although the new Bat Family game can be a lot of fun, its performance out of the gate seems to let it down at every step.

And for those that find that Gotham Knights’ multiplayer is not working, we’ve got some tips that helped us out:

Gotham Knights Multiplayer Not Working Solutions

If you keep seeing ‘Failed to Join Session’ when trying to join a friend for some Gotham Knights multiplayer action, you need to either reset the game, swap the player who is hosting with the one joining, or check the game’s server status.

You should also make sure you’re following our guide to playing co-op in Gotham Knights to ensure that you’re not missing a step somewhere. Don’t forget that Gotham Knights is NOT crossplay, so if you’re trying to enter multiplayer with someone on another platform, it’s not going to work.

Next up, it’s time to try some fixes:

The Bat Family in Gotham Knights

Restart Gotham Knights

The simplest solution to fixing your multiplayer woes is to restart Gotham Knights for both players. Once you’re both loaded up again, try entering multiplayer once more.

If you’re still getting Failed to Join Session errors, it’s time to move on to the next fix.

Swap Multiplayer Host

If you just can’t seem to join your friend’s multiplayer game, it’s worth seeing if they have similar issues when joining yours. When we tested multiplayer I found that I couldn’t join my colleague’s game no matter how many invites he sent.

However, upon sending him an invite to my world, we found that he was immediately able to load into my version of Gotham City.

How to Play multiplayer Gotham Knights

Of course, this isn’t an ideal solution if you wanted to make progress in one game in particular. But until WB Games Montréal comes up with a fix, it’s at least one possible way to play online.

Verify Game Files

If you’re on PC, playing on Steam, verifying your game files could ensure that you don’t have a corrupted file or two clocking up your Gotham Knights. Here’s how the process works:

  • Open Steam
  • Head to Library
  • Find Gotham Knights on your game list, and right-click on it
  • Choose Properties, then Local Files
  • Click Verify Integrity of Game Files
  • Steam will now verify your Gotham Knights files and alert you when it’s done.
  • Re-open Gotham Knights and see if that has fixed your multiplayer issues.
Steam How to Verify Game Files

Check the Gotham Knights Server Status

If you just can’t get multiplayer to work, it’s possible that Gotham Knights’ online mode is currently down for all players.

Keep a close eye on the game’s official social media accounts for word from the developers, such as this promise that a multiplayer fix is on the way!

Check Your Own Internet Connection

Finally, when in doubt, it couldn’t hurt to check your own internet connection to see if there are any issues there. Try running an internet stability test to see how stable your connection is, something that could impact online performance.

If you believe your internet could be causing the issues, simply turn your router off at the plug, wait 30 seconds, and turn it back on. Then, try rebooting Gotham Knights when you’re back online.

Chances are though, you’re simply experiencing the same issues as thousands of other players – one that it sounds like WB Games is on top of. We’ll have to wait and see whether the issues resolve themselves soon, but in the meantime, you can use the methods above to try and get online.

More Gotham Knights Guides:

Managing Editor
Max has a wealth of experience in the industry and is a lover of all things video games, situated in Manchester, United Kingdom.