“Error: bad login” issue in Android app version


This message suddenly appeared to my Android 11 phone since yesterday when I tried to login with my usual account. Is there a way to solve this problem?


Click on Advanced settings and make sure it’s right. I don’t know why, but periodically that field gets changed and I get the same error.


Thank you for your reply. this is the result when I clicked at the Advanced settings. I got an “Authentication failed.” message at the Old Turtl Server’s url with a web browser, Could this be the cause of the issue?