Fix Marvel Rivals Error Code 10 - Connection Issues

You are staring at an error code 10 while trying to launch Marvel Rivals, and the game just refuses to connect to the servers. It is usually caused by a handshake failure between your local network and the game client, or a corrupted file stalling the login process.

Why this happens

Error code 10 indicates a communication breakdown, often triggered by a blocked connection, outdated DNS routing, or corrupted installation data.

What you'll need

You will need administrative access to your computer to modify firewall rules and network settings.

Steps

1. 01
   Check downdetector.com to confirm the Marvel Rivals servers are actually online before troubleshooting your own setup.
2. 02
   Unplug your router for 30 seconds, plug it back in, and wait for the lights to stabilize before relaunching the game.
3. 03
   If on Steam, right-click Marvel Rivals, select Properties, go to Installed Files, and click Verify integrity of game files.
4. 04
   Open Windows Security, go to Firewall and network protection, click Allow an app through firewall, and ensure Marvel Rivals is added with both Private and Public boxes checked.
5. 05
   Change your PC or PS5 DNS settings to manual and set your primary DNS to 8.8.8.8 and your secondary DNS to 8.8.4.4.