Marvel Rivals Error Code 10: What We Know and How to Get Back In

What the official sources say, and don't say

NetEase's FAQ section on marvelrivals.com currently lists twelve technical guides: the Common Technical Issues FAQ, guides to integrity checks, GPU Debug Mode, the client diagnostic tool, the network analysis tool, proxy-related login failures, Intel CPU crashes, laptop performance, Memory Integrity, DMA protection, the HD texture pack, and the prohibited software list. None of them mentions a numbered error code. The December 11, 2024 launch-period FAQ doesn't either; its connection entry says only that occasional server disconnection issues had been resolved and that players still affected should contact support on Discord. A search of the wiki for "error code" and for "code 10" returns nothing.

So the useful question is not "what does 10 mean" but "what does NetEase say causes connection failures". Its guides name three causes: leftover proxy settings from VPNs, proxies or game accelerators (which can block login even when your browser works); antivirus or firewall software misidentifying the game process (which can stop you entering a match after loading or reconnecting after a disconnect); and damaged game files, for which it publishes repair steps. The sections below take those in order, after one check that comes first: whether the servers are up at all.

Rule out maintenance before touching your PC

Patches go live at 09:00 UTC, and the announcements say whether there is downtime. Some updates deploy with no server downtime at all. Others take the servers offline: the patch notes for March 20, April 17, July 10, August 7 and September 11, 2026 each list estimated maintenance of 2 hours, and the April 2025 notes warned of a 2 to 3 hour window during which players could not access the game and that return times could vary. An error during that window is the server, not you, and no setting will change it.

Before troubleshooting, check the news and announcements pages on marvelrivals.com and the official Marvel Rivals channels linked from the site's footer (X, Discord and others) for a maintenance notice. Patch notes usually post the day before the update. If an update is in progress, wait for the announced window to pass and try again. If you play on PC, also make sure your launcher has finished downloading the patch, since a client that hasn't updated can't join the updated servers.

Run the two official network checks

If the servers are up, test your own connection with the tools NetEase documents.

Network Adaptability Test. The PC install folder contains CapturePro.exe (in Steam: right-click Marvel Rivals, Manage, Browse Local Files). NetEase's Guide to Network Analysis Tool Usage says to click Network Adaptability Test if you cannot log in or enter a match. For in-match lag, the same tool's Network Delay Test lets you choose nodes or nearby regions, run it for about 20 seconds (or while playing), and click Stop. Both write a results zip file that support can read.

Proxy check. NetEase's proxy guide covers the case where your internet works in a browser but the game won't log in. Search Windows for Proxy settings and make sure Use a proxy server is off. Then open Command Prompt as administrator and run netsh winhttp show proxy. If it shows Direct access (no proxy server), you're fine. If it shows a proxy, run netsh winhttp reset proxy, restart the computer and try again. If you use a VPN or game accelerator, quit it fully for the test.

A DNS flush is harmless if you want to rule out a stale cache. Microsoft documents ipconfig /flushdns as clearing the DNS client resolver cache. It's a small cleanup, not a known fix for this error, so don't expect miracles from it. Lag-specific fixes are at marvel rivals lag spikes fix.

On PS5 or Xbox, the tools in this section don't apply: CapturePro.exe, netsh and the Windows proxy settings are all PC-only, and none of NetEase's twelve guides is written for consoles. On a console, the reasonable steps are the server check above, a full restart of the game, and your console's own network connection test.

Allow the game through security software, then repair files

NetEase's Common Technical Issues FAQ says that crashes at launch, not being able to enter a match after loading, and not being able to reconnect after a disconnection can all come from antivirus or firewall software misidentifying the game. Add the install folder and ~\Marvel\Binaries\Marvel-Win64-Shipping.exe to your security software's whitelist, or disable the antivirus briefly to test. For Windows' built-in tools, NetEase gives two paths: in Windows Defender Firewall, choose Allow an app through the firewall and allow Marvel-Win64-Shipping.exe on private and public networks; in Windows Security, go to Virus & Threat Protection, Manage Settings, Controlled Folder Access, and add the same file.

If the error persists, repair the installation before reinstalling it. NetEase's Integrity Check and Repair Guide covers Steam (Properties, Installed Files, Verify Integrity of Game Files), the Epic Games Store (right-click the game, Manage, Verify) and Loading Bay (the option button, then Verify File Integrity). Valve's article adds that you should restart the PC before verifying and that one or more files failing to verify is normal, since local configuration files are not replaced. The game needs 70 GB of storage according to its Steam page, so a full reinstall is the last resort, not the first step. If the game also closes or freezes, NetEase's crash steps are summarised at fix marvel rivals random crashes.

If it hit mid-match: penalties, reconnecting and support

An error that drops you from a ranked match is treated as a disconnect, and the rules published with the August 8, 2025 update set out what follows. A disconnect during loading, hero bans or picks, hero select, or the first 70 seconds makes the match invalid and gives you a T1 penalty. Later than that, if the match ends within 90 seconds of your drop, you get a normal result. If it runs on longer and you never return, you get a point penalty plus a Competitive matchmaking ban starting at 15 minutes for a first offence. If you reconnect before the match ends, the matchmaking ban doesn't apply. The full tables, including Quick Match bans, are at marvel rivals restricted from competitive matches. The practical rule: relaunch and rejoin immediately.

If nothing above works, contact support with evidence. NetEase's guides ask for the CapturePro results zip (tr_results_…zip) for network problems, and the client_diagnose.exe output (diagnose_yyyy_mm_dd_xx_xx_xx.zip) for client issues, both sent through the official Discord, where the launch FAQ says a Support Bot takes requests. The site footer also lists marvel_rivals@global.netease.com. Include your platform, the exact error text, and the time it happened. NetEase's August 2025 rules also say that if you believe you were wrongly penalized for a disconnect, you should contact customer support for a review. More fixes are on the guides hub.