Error 21 in Marvel Rivals can be tricky, but there are a few fixes that might help. Follow these steps to troubleshoot the problem and get back into the game.
Fix 1: Confirm Terms and Conditions
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Look for the Terms and Conditions page:
After the error appears, a Terms and Conditions window may pop up.
-
Accept the terms:
Use your mouse to click Confirm.
Look for a gray button in the top-right corner and click it.
-
Restart the game:
This method has helped other players resolve Error 21.
Fix 2: Disable IPv6 on Your Internet Connection
Some players found that having IPv6 enabled on their network causes the error. Switching to IPv4-only access may solve the issue.
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Access network settings:
Right-click your internet connection and select Network and Internet Settings.
Go to Network and Sharing Center.
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Edit connection properties:
Select your active network connection.
Click Properties.
-
Turn off IPv6:
Uncheck Internet Protocol Version 6 (IPv6).
Click OK to save changes.
-
Restart the game:
Many players reported success after disabling IPv6.
Fix 3: Use a VPN or Mobile Hotspot
If disabling IPv6 doesn’t work, try this:
-
Install a VPN:
Choose a VPN service and connect to a server near your region.
-
Use a mobile hotspot:
Connect your gaming device to a hotspot from your phone or laptop.
This can bypass network restrictions causing the error.
Additional Tips
If for whatever reason you still can’t fix the issue, try a complete reinstall. There may be alternative solutions found online in various forums as well.
Good luck!
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