Error:COMMON-1: Some unexpected internal error has occured. If the problem persists please report to the Tech Support.
Error: No response from the device "a.b.c.d/161". Check SNMP communities, version or network for issues.
Above errors are seen on accessing WLC for config purpose from WCS. Seen after migrating WCS 4.2.62 to a new hardware and restoring the backed config.
OS and software versions remain the same, only new hardware is an upgraded one.
The original server is now put back in place and works .. just fine.