I provided a packet trace in an above reply. I can generate a new one if you'd like, but it will look exactly the same.

@KimcheeGUN It very well could be in our confguration, but I assert that even if there is a configuration parameter causing it that 220030 queries over 7 days from 2 access points, that is a bug....

@Dan15 given what I'm seeing I don't see how this is not a bug. There is no reason to query that frequently.

@Dan15 I very clearly see my APs asking for it. Here is the packet capture of the request directly from the DNS resolver: 22:08:26.844151 IP (tos 0x0, ttl 63, id 64535, offset 0, flags [DF], proto...

@Dan15 Did you ever resolve this? I am seeing this as well and I can't really see why. It's only the EAP670 making the DNS query and it is very, very frequent.