my customer is running CCM 5.1b cluster of two MCS-7825i2 servers for around 100 IPT users. I've encountered a strange problem this week; any updates on any IP phone through CCMAdmin (CSS, adding service to phone, change device pool, change MRGL on phone,..etc) is being made and saved correctly, but the IP phone being updated through CCM does not get any update, even when initiating reset through CCM to any IP phone, it will not reset or change its state, like you did no thing!
what is happening is that each ip phone is like holding its old conf file and does not get any update once made through CCM web admin!
i started troubleshooting this by resetting tftp (on Publisher), then cisco callmanager service on both Pub and Sub with no avail!
i checked connectivity and security settings in the data network, everything was ok.
lastly, what i had to do was to restart the CCM Publisher server, the result was every thing worked fine after this restart?
so some service/s was/were stuck.
what is your opinion, is it the 5.1b version issue? or something else?
i was confused to have like such a case, it is CCM 5.1.x and linux based OS?!