I want to add a second wlc 4402 in branch office(18.104.22.168) to WCS (22.214.171.124) in Headquarter. During this operation I receive this messages from wcs:
"controllers unreachable, check smnp and network for issue". I try to ping from wcs to wlc (no problem), snmp community is correct (there is another controller that use this communiny without problem). There aren't firewall between wlc and wcs. Can you suggest something?