what is the spec for provided per port power draw limit ?
and the 581 is supposed to consume how much at what voltage ?you might swap ethernet cable or test a plug in wall wart if it has a power supply provided.
the only other thing i can think of is energy efficient ethernet is some how getting triggered, but if it is happening while you are doing something on wireless, then that is out.
Go into the local syslogs on the WAP and see if it is telling you about the drop/reconnect.
What is FindIT running on and how is it connected?
Welcome To SNBForums
SNBForums is a community for anyone who wants to learn about or discuss the latest in wireless routers, network storage and the ins and outs of building and maintaining a small network.
If you'd like to post a question, simply register and have at it!
While you're at it, please check out SmallNetBuilder for product reviews and our famous Router Charts, Ranker and plenty more!