This issue can occur when the Remove Admin Privileges feature is activated, resulting in users being removed from the Administrators Group, which previously had permission to Allow Remote Access.

To resolve this, follow these steps:

Check Group Membership:

• Ensure that affected users are now only members of the Users Group.
   

Verify Remote Login Permission:

• Confirm if the Users Group is allowed for remote login. If it is not, this could be the source of the problem.
   

Grant Remote Access Permission:

• If the Users Group does not have permission for remote access, you will need to add this permission.
   
• Alternatively, you can create a new group and grant them remote access permission by adding users.
   

Following these steps, you can restore remote access functionality for the affected users.