I have a new install of latest 8.5 and just pulled out some 6945s and connected them. They are getting IP information, TFTP, and updating firmware, but they aren't registering. I've noticed that when I go in the Settings menu of the phone and navigate to Settings > Admin Settings > Security Setup > LSC: Not installed; and then I slect update on LSC: Not installed, it prompts for an authorization string, I enter any string and select Submit. After that, the phone immediately registers when I exit out of the menus. We are not trying to do anything security related like with certificates. After I get the phone to register and select to reset it or a configuration change from CUCM, it doesn't re-register until I do the same process listed above. Any ideas?\
These are the paths to get to each CCX logs through CLI. They may be helpful if you are having issues accessing RTMT or downloading logs through it.
If you want to download them you have to prefix "file get " and you can add one of the options (re...