Forbidden - You don't have permission to access /group/control_panel/manage on this server.

Document ID : KB000033944
Last Modified Date : 14/02/2018
Show Technical Document Details
Accessing the UMP Control Panel->Users or any other link under Control Panel causes this message to occur:

"Forbidden - You don't have permission to access /group/control_panel/manage on this server."

Whether the user is logged in as administrator/superuser makes no difference.

It was discovered that there was a separate, second Apache Server installed on the UMP machine acting as a reverse proxy and it was interfering with access to the Control Panel page.

Resolution:
The Apache Server need to be be reconfigured so as not to block access to the UMP Control Panel page.