Rocket League Error 67: How to Fix

Rocket League Error 67 is a connection error that informs players the "connection to server timed out". This is typically a local issue, and there are a number of troubleshooting steps players can take to try to fix it.
Regardless of platform, enabling UPnP on your router can help your connection for multiplayer gaming. This setting will appear in different places depending on what router you have. Simply search "how to enable UPnP" for your router model and follow the steps.
Rocket League Error 67: How to Fix on Steam
First, make sure you're running Steam as an administrator. This can be achieved by right-clicking on your Steam shortcut and clicking "run as administrator." You should also make sure that Steam is always running as an administrator. You can do this by right-clicking steam, selecting Properties>Compatibility, checking "run this program as an administrator", and applying the settings.
Next, you want to add exceptions for Rocket League in your firewall and antivirus settings. On Windows, find your Windows Defender Firewall settings. Select "allow an app or feature through Windows Defender Firewall. Click "change settings", and make sure both public and private options are toggled-on for Steam.
Under Windows Security, find your "virus and threat protection" settings. Find the "exclusions" section, and add an exclusion for Rocket League by selecting the .exe of the game.
Rocket League Error 67: How to Fix on Console
If you're experiencing Error 67 in Rocket League but aren't having problems with other games, it's likely not an issue on your end. Even so, can still take steps to ensure a more stable console connection. First, as stated above, enable UPnP on your router. Next, refer to Psyonix's connectivity issue troubleshooting guide. Select your console, and follow the recommended steps.