# GaussDB(for openGauss)

1. Error message: FATAL: Invalid username/password,login denied.

Error cause: The username or password of the GaussDB(for openGauss) DB instance is incorrect.

Check whether the username or password is correct. If you are not sure, view the username and reset the password on the GaussDB(for openGauss) console.

Changing the password may affect services.
Parent topic: Connection Management (Development Tool)