We are currently investigating an issue affecting matchmaking where when inviting a player or getting invited, you receive an error message saying "The game could not be joined - E03-H2-11" or "E03-H2-29"
Unfortunately, due to the technical nature of the issue, we are unsure how long it will take to apply a fix - rest assured that we will do our very best and be as fast as possible.
That said, some players have found the below workarounds, but we cannot guarantee that they work for everyone:
Making sure that your internet connection is stable
- If you're using WiFi try to connect your computer to the router with a LAN cable.
- If you're using antivirus/firewall software, please make sure the game is whitelisted in the settings.
Whitelist Overcooked!2 in Windows Defender
- Open Windows Defender Firewall by typing Windows defender into your search bar > Advanced Settings
- Now, on the left bar, you'll see a few options, the important ones are "Inbound rules" and "Outbound rules", the following steps apply for both of them.
- Select any of the In/Out options, and go to the right bar, select "New rule" > Program > Select "Browse" and pick the game's .exe > Allow every option (default location: :\SteamLibrary\steamapps\common\Overcooked! 2)
Making sure that your NAT type is set to Open
- Open your router's control panel in your browser and log in;
- Go to the settings and set UPnP to on.
If you require further assistance on how to do this, please contact your ISP or check your modem/router manual
Removing and adding your friend(s) on Epic
In the Epic launcher, click the friends' icon. In here, block your friend, then unblock, remove and re-add.
Use a VPN
You can try to use a VPN to connect ‘locally’ with each other - due to the general nature of VPNs and the possible cost associated, we cannot support this option but would still like to point out that it worked for some players