C4110 EWC Update 8.32.10 to 9.15.06 failed

[M_Nees]

i have 2x EWC WLAN Controller running as partners (mobility domain, cluster). Based on the recent release notes i update directly from V8.32.10 to V9.15.06. After update i applied the v9 license. The Controller are hardware servers 2x C4110-2 and we uses AP3620-1 with external antennas and AP3705-i. In the next weeks we want to use AP3805-i - this force us to do the update.

The update seems to be good except of 2 things:
+ no SSID on any AP (3620 / 3705) nor any radio (a or b/g) are going online (Status of BSS Info: N/A SSID-Name, No Channel) - see details on screenshot
+all Guest accounts are purged

Rebooting of the EWC and the AP (serveral times) are not solving the issue. Regarding other problems a reboot solve it normally. The Update of the APs Firmware seems to be smooth.

Because WLAN is completelly not running i have to revert to 8.32.10. After the revert to this stable version all SSIDs / APs are online like the months before and working without issue!

Does any one have the same problem and hopefully solve it yet? Should i maybe use some interim versions - like 8.32.10 to 8.32.15 to 9.12.x to 9.15.6? Any other hints to increase the chance that the next try would be successfull?

Unfortunately the running GTAC Case does not solve the problem or find the root cause till yet.

[Doug]

The 9.15.06 release notes state: The minimum system software version is 08.32.01 to upgrade to this software version.

[el_montro]

I might be wrong but don't you need 9.12 first ? before you can go to 9.15

[Ronald_Dvorak]

Are the APs remote (VPN/MPLS) or in the same building ?

[Doug]

Based on a quick review of your configurations I can see that there was no VNS's configured...

The access points is showing the same as well...

Jun 1 07:02:26 cap: 00220:radman.c:773-rmProcessRadioReset()-RM(0) [44000 ms] - Radio Reset, stopping radio because of No VNS's

If you have a tech support file that you generated post upgrade we can review the upgrade status in the upgrade_process.log

[Doug]

I'll review your ticket. I have not seen any other reports of this type of failure but we will certainly investigate this and try to figure out what's going on with your system.

-Doug Hyde