Marvel Rivals Error Code 10: What’s Causing It and How to Fix It

You launch Marvel Rivals, ready to dive in. Then – Error Code 10. Just like that, the game won’t load, won’t connect, and doesn’t tell you much else. It’s not just you. This login issue has been frustrating a lot of players lately. 

Whether it’s a connection glitch, outdated files, or something on the server side, the fix is usually within reach. This guide lays it out simply, without the fluff – what the error means, what causes it, and how to get back into the match fast.

What Is Marvel Rivals Error Code 10?

Let’s start with what we know. Error Code 10 usually kicks in during the login or server connection phase. You launch the game, try to enter, and the message appears. Sometimes it’s labeled as an “unknown error.” Other times, it’s just Error 10 and nothing else.

What it actually means is this: the game client wasn’t able to connect to the server successfully. That could be due to something on your end (like network instability or blocked files), or it could be something happening server-side (like downtime or overload).

The lack of detail makes this error more frustrating than it needs to be. But the good news is that most fixes are straightforward, and you don’t need to be a tech expert to get through them.

Common Triggers Behind Error Code 10

While there’s no official list from the developers, these are the most frequently reported causes based on community forums and user experiences:

• Unstable or slow internet connection, which can interrupt the server handshake process.
• Running an outdated version of the game that may not be compatible with current servers.
• Corrupted or leftover cached files from previous sessions interfering with the login process.
• Antivirus software or firewalls mistakenly blocking the game’s access to online services.
• Skipping or failing to load the End User License Agreement (EULA), which can prevent login for some players.
• Some users mention differences depending on whether they play via Steam or Epic Games, though no official confirmation of platform-specific bugs exists.
• Temporary server outages or maintenance events, although this is considered a less frequent cause compared to local setup issues.

In some cases, these causes stack, meaning one issue masks another until all are addressed.

How to Fix Marvel Rivals Error Code 10

Here’s a complete list of fixes that have worked for many users. Try them in order, starting with the simplest.

1. Accept the EULA (Yes, Really)

Oddly enough, one of the most overlooked causes is skipping the End User License Agreement. If the EULA did not load properly or was skipped during the first launch, it may contribute to login issues for some players.

What to do:

• Relaunch the game.
• Let the EULA screen load fully.
• Scroll down and select “Accept”.
• Close the game completely, then relaunch.

It’s a minor step, but it’s blocked more players than you’d expect.

2. Restart Game and System

Sometimes the problem is temporary. A clean restart clears up background tasks, cached memory, and pending connection attempts.

For PC:

• Close the game.
• Restart your computer.
• Reconnect to your network.
• Try again.

For Console (PS5, Xbox):

• Fully power down (don’t just rest mode).
• Unplug for 1-2 minutes.
• Reconnect and launch the game again.

3. Test and Reset Your Internet Connection

A spotty connection can trip the login sequence. Even brief interruptions can block server handshake.

Things to try:

• Switch from Wi-Fi to Ethernet if possible.
• Restart your router (unplug for 30 seconds).
• Run a connection test (via your PC or console settings).
• Use a different network (e.g. mobile hotspot) to compare.

If the error disappears on a different network, the issue is likely ISP-related or tied to local DNS routing.

4. Change DNS Settings

Custom DNS servers often fix weird connection issues that your default ISP setup can’t handle.

Recommended DNS options are Google DNS: 8.8.8.8 and 8.8.4.4 and Cloudflare DNS: 1.1.1.1 and 1.0.0.1.

To manage it on Windows, go to Control Panel > Network and Internet > Network Connections. Right-click your active connection > Properties. Double-click “Internet Protocol Version 4”. Manually enter the DNS addresses. Save and restart your PC

5. Update the Game and Your Platform

Running an old version of the game client is a surefire way to cause issues. Updates often patch connection bugs or security blocks.

On PC (Steam/Epic):

• Open your library.
• Right-click Marvel Rivals.
• Select “Check for Updates”.

On Console:

• Highlight the game on the home screen.
• Press options (three dots or menu button).
• Select “Check for Update”.

Also check for system updates – sometimes firmware mismatches cause trouble.

6. Verify Game Files

If your installation is missing key files or has corrupted ones, the game may fail to launch properly.

Steam:

• Library > Marvel Rivals > Right-click > Properties
• Installed Files > “Verify Integrity of Game Files”

Epic Games:

• Library > Marvel Rivals > Click the three dots
• Select “Manage” > Click “Verify”

This process scans your local files and re-downloads anything broken or missing.

7. Clear Cache and Reserved Data

Leftover files from past sessions can block the game from running smoothly.

On Windows:

• Press Win + R, type %localappdata%, and hit enter.
• Navigate to the Marvel\Saved folder.
• Delete the Saved folder (it only contains temporary files).

Console:

• Open Settings
• Storage > Clear Reserved Data (varies by platform)

Then restart the game cleanly.

8. Adjust Firewall or Antivirus Settings

Some antivirus programs block game processes by default, especially ones that try to access online servers.

To fix:

• Whitelist Marvel Rivals in your antivirus settings.
• Add exceptions to Windows Defender or your third-party firewall.
• Temporarily disable the firewall, launch the game, then re-enable it with proper permissions.

If the game loads while the antivirus is off, you’ve found the culprit.

9. Try Network Troubleshooter (PC Only)

Windows includes a built-in tool for diagnosing network issues.

You have to press Win + S and type “network troubleshooter”, click “Find and fix network problems”, and follow the instructions in the window that opens.

This can flag issues with your adapter, DNS, or background services.

10. Reinstall the Game (Last Resort)

If none of the above works, a clean reinstall may help, especially if something deep in the install folder got corrupted.

Tips before reinstalling:

• Uninstall Marvel Rivals completely.
• Delete remaining folders manually (especially in AppData or Program Files).
• Restart your system.
• Reinstall the game from a fresh download.

Installing the game on an SSD may improve general performance, but it does not directly affect Error Code 10.

Preventing Error Code 10 in the Future

Once you’ve fixed it, you don’t want to deal with this again. Here’s how to avoid future problems:

• Keep your game and system up to date.
• Use wired internet if possible.
• Whitelist the game in all security apps.
• Clear cache files monthly.
• Avoid background downloads while gaming.
• Monitor server status via Reddit, Discord, or official channels.

Quick Checklist (Recap)

Here’s a condensed version of all the key fixes:

• Accept EULA in-game.
• Restart game and router.
• Switch to wired internet.
• Change DNS to Google or Cloudflare.
• Update game and system.
• Verify game files.
• Clear saved data or cache.
• Whitelist in firewall and antivirus.
• Use network troubleshooting (PC).
• Reinstall the game if needed.

Final Thoughts

Marvel Rivals Error Code 10 is annoying, no question. It shows up without warning and doesn’t give you much to work with. But it’s rarely a dead-end. Most of the time, it’s a connection issue or a small setup snag, and once you know where to look, it’s surprisingly fixable.

Take it step by step, don’t skip the boring stuff (like file checks or firewall settings), and you’ll be back in the game soon enough.

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