Thanks for the info. We had an issue on AOS which was fixed in v6.2.0.0, so your controller is probably fine. Can you check one last thing for me please? From the AirWave server's CLI, could you please run this command?
[root@localhost mercury]# s2w <controller_ip> <snmp_community_string> 1.3.6.1.4.1.14823.2.2.1.4.1.2.1.3.0.
Depending on what this returns, we may have to open a case with support on debugging this further.