r600 accepting connections but no traffic

unknown

We have had two differnt r600's connected through a ZD1200 exhibiting an annoying behaviour,

Users reported connections were being dropped and picked up again. From questioning them it seems that the WiFi connection was staying up but no data was being passed. In both cases only one AP was effected, all others (and the wired network) had full access to LAN and Internet.

A reboot of the AP fixes the problem.

The only thing I see as an Event in the AP log is the reboot.

We are a school and I also see a lot of Rogue AP's which are student phones setting up hotspots to get around our filtering (in breach of policy but hard to identify, they are smart enough to not use their names as the hotspost name). Wondering if there is something connected to that?

Cheers
Simon Brya