We are getting (NO SECURITY) error in the left pane in front of a HUB in UIM. In right pane, under Security tab it is showing as OFF for that hub.
Server was showing DOWN in console, after server Reboot it is showing green but security error is still there.
Release : 8.51
Component : UIM - HUB
The hub tag in IM hub (NO SECURITY) normally occurs when there is a problem with the hub communicating back to the primary hub or other hubs to sync the hub security.cfg data.
So either the security.cfg file was not being updated for some reason or the hub was not communicating its status properly.
The information displayed in the Infrastructure Manager (IM) ultimately comes from the "gethubs" callback against whichever hub IM is logged into (e.g. Primary hub) so essentially the hubinfo contained in there must have been wrong.
Try a reboot - it will most likely re-sync the security and/or be able to properly update the Primary hub with its license status.