Your problem sounds similar to this old problem some ran across years ago. Not sure if this will help, but check it out and see if it relates to your issue. https://www.kahuna-fi.com/post/all-ruckus-unleashed-ap-s-lose-heartbeat-simultaneously
I just happened to be looking through these comments and noticed that you were trying to upgrade an Unleashed R500 AP. I run 4 of those here at home, and unless I'm mistaken, the last and latest release of Unleashed designed to run on the R500 AP's ...
@bob_brennan_6972913 Looks like Unleashed is in need of updating. (I don't know if that has anything to do with the problem, but it's a good start.) I'm using version 200.7.10.202.127 with (4)R500 AP's successfully with Google Chrome on several P...
Hi Andrew, I too am using Unleashed with (4) x R500 A/P's, and I just logged into Unleashed Desktop successfully with Google Chrome Version 94.0.4606.81 (Official Build) (64-bit) on a Ubuntu based Linux Lite PC. I have been running Unleashed version...