Failed to Verify Username

If you or your players are seeing the Failed to verify username error, it usually means the server is trying to authenticate with official Mojang/Microsoft servers, but the client joining is not.

To allow these connections, you must disable Online Mode.

Steps

1. Open the SquidServers App.
2. Select the specific server you wish to modify.
3. Open the Settings tab.
4. Scroll down to the Security section.
5. Find the Online Mode toggle and uncheck Enabled.
6. A warning prompt will appear. Click I understand, Continue.
7. Restart the server for the changes to take effect.

Caution

Disabling Online Mode (setting the server to “cracked”) removes the official identity verification for players. Anyone can join your server using any username they choose. If an attacker knows the username of an Admin or an Operator (OP), they can log in as them and gain full control over your server. We strongly recommend installing an authentication plugin (like AuthMeReloaded) so players must use a password to log in once they join.

SquidServers strongly discourages the use of “free” or cracked Minecraft launchers. These files frequently contain malicious software, are not verified for safety, and our support team cannot assist with issues arising from their installation or usage.