I am having an issue with SNMP post software upgrade on my 5508 WLC. I went from version 184.108.40.206 (I think!) to current version 220.127.116.11. My WCS is still running on verison 18.104.22.168. I tried the recommendations of restarting the WCS and also removing the controller and adding it as both SNMPv2 and SNMPv3 but still its unreachable and it receves error code "Failed to add device to WCS Reason: Object not found in device" when I attempt to add it as a new controller.
Is this issue because of the different software versions? And if so, how can I obtain the correct version of the WCS? I dont seem to be able to download it from the Cisco website.