When I add controllers devices like AIR-WLC 4404-100-K9 in RME this device appears as a unknow. I have checked snmp credentials and it's correct and I have installed device packages but doesn't work. I have checked the device appears in product device support tables too. (http://www.cisco.com/en/US/products/sw/cscowork/ps2425/products_device_support_tables_list.html)
The OID of device is: .188.8.131.52.4.1.14184.108.40.206.3
I attach screeshot.