Firewalls are a tool that your computer uses to protect you from malicious software.
They can interfere with the way your computer communicates with Rocket League. You can create an exception in the firewall. This will allow your computer to better communicate with the Rocket League.
Turn your firewall off and test a game to see if the issue still occurs:
Turn the firewall back on:
If the issue is resolved by disabling the firewall, you need to create an exception in Rocket League. Adding an exception to your firewall will allow Rocket League to connect to your computer.
Follow the steps below to create an exception:
If you do not see Rocket League in the Allow apps to communicate through Windows Defender Firewall list, you will need to add it.