Originally Posted by puntjuh
phpmyadmin worked the first time and phpmyadmin also uses the login from ISPconfig.
But the phpMyAdmin login is different from the other ones (like web1_u2 for the database web1_db2).
Did you send an email first to the account in question? Sometimes the mailbox gets created only when the first email arrives, and only then can you log in.
Please post the output of