Hi Raz
The SM21 log error suggests that the license check was failing .. was there any recent changes in the system like hostname / IP address..
Also as mentioned in your initial question , you were having issues in logging in to your CI ( saying license rejected ) but you were able to login through your APP Server , this behavior should never happen and looks like some AIX Level configuration issue in your environment ..mostly related to host names.
Please see the following thread talking about similar issue :
No logon possible (no hw ID received by mssg server)
Hope it helps
Thanks
Rishi
