Failed to Login: Invalid Session
Mojang Minecraft
Severity: ModerateWhat Does This Error Mean?
Failed to Login: Invalid Session means the Minecraft authentication servers could not verify your account. This usually happens when you switch accounts, the session token expires, or Mojang's servers are having issues. Restart the Minecraft launcher and log in again.
Affected Models
- Minecraft Java Edition
- PC
- macOS
- Linux
Common Causes
- Session token expired — you need to re-login through the launcher
- Mojang/Microsoft authentication servers are down
- You changed your password recently and the old session is invalid
- Running multiple instances of Minecraft with the same account
- Using an outdated launcher version
How to Fix It
-
Close Minecraft completely and reopen the launcher.
The launcher refreshes your session token when you start it. Close both the game and the launcher, then reopen.
-
Log out and log back in through the launcher.
In the Minecraft launcher, click your profile name and choose Sign Out. Then sign back in with your Microsoft account.
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Check if Mojang's servers are down.
Visit the Minecraft status page or check Twitter/X for reports. If the authentication servers are down, everyone is affected — just wait.
-
Make sure you are not running Minecraft on another device with the same account.
Playing on two devices simultaneously can invalidate the session on both. Close Minecraft on the other device first.
Frequently Asked Questions
Do I need a Microsoft account for Minecraft now?
Yes. All Minecraft Java Edition accounts have been migrated to Microsoft accounts. You log in with your Microsoft email and password.
Can cracked/pirated Minecraft cause this error?
Yes. Pirated copies cannot authenticate with Mojang's servers, so they always get this error on servers with online-mode=true. Only legitimate accounts can join official servers.