I recently had the pleasure (?) of upgrading a couple of Dell clearpass CP-5K-HW appliances in my network wireless lab, and i came across a few anomalies.
The version 6.2.2 which came out of the box on the hardware refused regardless of any coaxing on the system to download any update list from the clearpass.dell-pcw.com website.
I bit the bullet, and downloaded the 6.2 update 6 patch (~560 MB) and manually imported this to the system, followed by installig the patch.
Low and behold, once the system had come back up, it was able to refresh the updates and patches list so i could directly install from the software updates menu.
Just thought i’d share
Hope this has been useful for someone.