Marvel Rivals is an action-packed 6v6 hero shooter featuring iconic Marvel characters, but like many online games, it can encounter connectivity issues. One of the most common errors players face is Error Code 4, which prevents them from logging into the game.

This guide will explain what Error Code 4 means, it’s possible causes, and the most effective and official troubleshooting methods.
What Is Marvel Rivals Error Code 4?
Error Code 4 is a network-related error that shows up when Marvel Rivals cannot establish a secure connection between your device and the game servers.
The message typically reads:
“LOGIN ERROR: Unknown Error. Error Code: 4”
This isn’t a hardware bug or game crash—it’s often linked to:
- Network instability
- Server outages
- Platform service interruptions (PSN, Xbox Live)
8-Step Fix Guide for Marvel Rivals Error Code 4
1. Check Marvel Rivals & Platform Server Status
Before anything else, confirm if the problem is on their end.
- Visit @MarvelRivals on Twitter
- Check outages via Downdetector
- Join the official Discord for live support
- For PS5/Xbox, check status of PSN or Xbox Live
If servers are down, no fix will work until they’re restored.
Read More: How to Fix Marvel Rivals Error Code 211 on Steam (Full Guide)
2. Restart Game & Your Device
A quick refresh can fix many temporary memory glitches or session errors.
Steps:
- Fully close Marvel Rivals (not just minimize)
- Restart your PC, PS5, or Xbox
- Relaunch the game
3. Reset Internet & Flush DNS
This clears network cache and re-establishes a cleaner connection.
PC (Windows) Steps:
- Open Command Prompt as Administrator
- Type each of these one at a time:
ipconfig /flushdns
ipconfig /release
ipconfig /renew
netsh winsock reset
netsh int ip reset
- Restart your PC
Console Steps:
- Restart both your router and console
- On console, go to Settings > Network > Test Connection
Tip: Use a wired (Ethernet) connection instead of Wi-Fi for more stability.
4. Change Your DNS to Google or Cloudflare
Faster, more reliable DNS can improve your connection to Marvel Rivals servers.
On PC:
- Press Win + R, type
ncpa.cpl
- Right-click your connection → Properties
- Select IPv4 > Properties → Use the following DNS:
- Preferred:
8.8.8.8
- Alternate:
8.8.4.4
or1.1.1.1
- Preferred:
On PS5/Xbox:
- Go to Settings > Network > Advanced > DNS Settings
- Choose Manual, then input the above addresses
5. Allow Marvel Rivals Through Firewall/Antivirus
Firewalls may block the game’s network traffic as a false positive.
Windows:
- Go to Control Panel > Windows Defender Firewall
- Click Allow an app through firewall
- Add or enable Marvel Rivals for both Private and Public networks
Third-Party Antivirus:
- Add Marvel Rivals to the whitelist
- Temporarily disable protection and test again
6. Use a VPN (Optional but Effective)
Some users resolve Error 4 by routing traffic through another region.
Steps:
- Install a VPN (NordVPN, ProtonVPN, etc.)
- Connect to a USA or Japan server
- Launch Marvel Rivals and log in
- Disconnect VPN after successful login
Use only trusted VPNs. Free or unstable ones can worsen the issue.
7. Verify or Reinstall Game Files
Corrupted installations can break login attempts.
On Steam:
- Right-click Marvel Rivals → Properties > Installed Files > Verify Integrity
On Epic Games:
- Go to Library → Marvel Rivals → 3 Dots > Manage > Verify
On Console:
- Delete and reinstall the game
Ensure you have enough storage space before reinstalling.
8. Contact Support (If All Else Fails)
If you’ve tried everything:
- Email: [email protected]
- Report in Discord #support or via Steam/Epic/PlayStation support
Final Thoughts
Error Code 4 in Marvel Rivals is usually a network or server-related issue. The most effective fixes include:
- Checking server status
- Restarting router & device
- Changing DNS to Google/Cloudflare
- Allowing the game through firewall
- Using a VPN (if region-blocked)
If the problem persists, reinstalling the game or contacting support may be necessary.
Have you encountered Error Code 4? Which fix worked for you? Let us know in the comments!