Marvel Rivals Won't Log In? Fix - Error 10, 220 & 5

Your login attempt for Marvel Rivals is failing because your local network configuration, game files, or firewall settings are blocking the connection to the game servers. These error codes, specifically 10, 220, and 5, indicate a handshake failure between your client and the authentication server.

Why this happens

These errors are usually caused by a corrupted local cache, outdated network DNS records, or your firewall incorrectly identifying the game traffic as a threat.

What you'll need

You will need administrator access on your PC if you are on Windows, or standard access to your PS5 system settings.

Steps

1. 01
   Completely close Marvel Rivals and your launcher (Steam or Epic Games). Power cycle your router by unplugging it for 30 seconds, then restart your PC or console.
2. 02
   Verify your game files: on Steam, right-click Marvel Rivals, go to Properties > Installed Files > Verify integrity of game files. On Epic, go to your Library, click the three dots on the game, select Manage > Verify.
3. 03
   If using a PC, press the Windows key, type 'cmd', right-click it to Run as Administrator, type ipconfig /flushdns, and press Enter to clear your DNS cache.
4. 04
   If on PS5, go to Settings > Users and Accounts > Other > Restore Licenses to sync your account access with the server.
5. 05
   To add a firewall exception, go to Windows Security > Firewall & network protection > Allow an app through firewall. Click Change settings, then Allow another app, and browse to your MarvelRivals.exe file in your installation directory; ensure both Private and Public boxes are checked.

Still not working?

If you are still unable to connect, check the official Marvel Rivals Twitter or Reddit to confirm if there is a widespread server outage. If the servers are active, disable any active VPN software, as these can frequently interfere with the game's authentication handshake.

Frequently asked questions

Will verifying my game files delete my progress?

No. Verifying game files only replaces missing or corrupted files and does not affect your account data, save files, or progress.

Is it safe to add an exception to the Windows Firewall?

Yes, adding an exception for MarvelRivals.exe is safe as long as you are only pointing the firewall to the legitimate game executable within your game's installation folder.

Why do these login errors keep coming back?

Frequent login errors can suggest an unstable connection or that your ISP is struggling to route traffic to the game servers properly, which may require a router firmware update.