Minecraft Invalid Session Error: How to Fix It

Easy 5-20 minutes Medium Severity Verified June 2026
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Error Code
Invalid session
Brand
Minecraft
Product Type
game
Severity
Medium
DIY Difficulty
Easy
Estimated Fix Time
5-20 minutes
The Minecraft 'Invalid Session' error means the game cannot verify your account with Mojang's session servers, which is required to connect to online multiplayer servers. This typically happens when your login token has expired, your internet connection interrupted during authentication, or Mojang's servers are temporarily down. The good news is that this error is almost always fixable in minutes without any technical expertise.
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Tools You'll Need

How to Fix Error Code Invalid session

  1. Check Mojang/Microsoft Server Status

  2. Fully Close and Restart Minecraft

  3. Log Out and Log Back Into the Minecraft Launcher

  4. Restart Your Router and Check Your Internet Connection

  5. Disable VPN or Proxy Services

  6. Flush Your DNS Cache

  7. Temporarily Disable Firewall or Antivirus

    Only disable your firewall or antivirus briefly for testing purposes. Re-enable it immediately after testing and add Minecraft as a permanent exception rather than leaving your system unprotected.

  8. Reinstall the Minecraft Launcher

    Back up your saved worlds before reinstalling if you want extra peace of mind. On Windows, your worlds are stored at %appdata%\.minecraft\saves. Copy this folder to a safe location before uninstalling.
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When to Call a Professional

If you have completed every step above and the error persists only on your network but works on a mobile hotspot, the issue may be with your ISP blocking Mojang's authentication servers. In that case, contact your Internet Service Provider and ask them to check for blocked connections to Mojang or Microsoft authentication endpoints. You can also reach out to Mojang Support directly at https://help.minecraft.net with your account details for account-specific session issues.

Frequently Asked Questions

Why do I keep getting the Invalid Session error every time I try to join a server?
Repeated Invalid Session errors are usually caused by an expired authentication token. This happens when the Minecraft Launcher has been open for a long time without a fresh login, or when Mojang's session servers are experiencing intermittent issues. The most reliable fix is to fully log out of the launcher, close it completely, reopen it, and log back in before attempting to join a server.
Does the Minecraft Invalid Session error mean my account was hacked?
No, in almost all cases the Invalid Session error has nothing to do with account security. It simply means the temporary session token the game uses to verify your identity could not be validated by Mojang's servers. However, if you notice other unusual account activity alongside this error, it is a good idea to change your Microsoft account password as a precaution.
Can I fix the Invalid Session error on Minecraft Bedrock Edition?
Yes. On Bedrock Edition for PC, close the game, sign out of your Microsoft account within the Xbox app or Microsoft Store, sign back in, and relaunch Minecraft. On consoles like Xbox or PlayStation, sign out of your account, restart the console, and sign back in. On mobile (iOS/Android), force-close the Minecraft app, clear its cache in your device settings if available, and reopen the app.
Why does Minecraft show Invalid Session only on certain servers?
If the error only appears on specific servers rather than all servers, those particular servers may be running outdated session authentication plugins or have a configuration issue on their end. It is worth contacting the server administrator. Alternatively, if the server uses a cracked or offline-mode setup, your legitimate paid account may conflict with its authentication system.
How do I fix Invalid Session in Minecraft without internet access or on a cracked launcher?
Minecraft's official multiplayer requires a valid internet connection and a paid Microsoft account to authenticate. If you are using an unofficial or cracked launcher, session authentication is not supported for online servers. To fully resolve the Invalid Session error in an official context, you need a valid Minecraft license purchased from minecraft.net and an active internet connection during login.

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