I've got a ZD1100 with 4 AP's. Three 7982's, and One 7762 (an outdoor). I have two specific ones that keep losing heartbeat and just falling off the network. They seem to run for a while, 30 minutes or so, then they both just drop off, almost at the same time. I've tried to distribute them across multiple PoE switches, in order to sort of spread the load, and I've tried to put all four on one switch, just to see if there's any difference.
They're not on the same switch as the ZD, which is getting fed directly off the Router.
I've tried switching them with known working ports (for example the AP's that never fall offline), using a really short, pre-made cable, and I get the same results. It's always the same two 7982's that keep dropping.
I can't for the life of me figure out what would be causing this. Any suggestions?