I was updating one of my cisco wlc 2504 software to 8.0.
I have done this before without issue; however, it loaded, rebooted.
It showed on the wlc 8.0.
All 5 of the access points, dropped like normal. I started to see one at a time come back online with the new version 8.0.
Everything looked fine, everything was working, about to leave the site and then cisco WLC froze.
I waited about 10 minutes and it never responded. Turn it off and back on, now I get
"Improper system operation detected
System has been halted because:
1. Boot loader failed verification"
I ended up buying another and shipping it overnight to get the site back up.
Anyway to fix this one?