❓ User Management: Why can't certain users log in?
This article explains the most common reason why users are denied access and how an administrator can resolve the issue by checking group membership.
If a user is not a member of any group, the account has no permission to log in. Even guests require at least a corresponding login right.
Cause: Missing group membership
If a user cannot log in, check whether they are assigned to a group with the necessary permissions. Users who do not belong to any relevant group have no access to the system.
You can view and adjust user group membership via the administration interface. If a user's rights were recently changed or the user was moved, the current group memberships should be verified.
A user must be assigned to at least one group with login rights, otherwise logging in is not possible!