There is no console output at all on slow flashing red APs.
AP was working fine for about a week, and we have other AP-105s that are plugged into the same PoE switch (Enterasys C2H124-48P) that are working fine, and have been since deployment. This AP will also not work in an unmanaged Netgear PoE switch sitting on my desk, or in any of our other Enterasys switches. Just the slow flashing red light.
Enterasys switch shows that each working AP is drawing no more than 7W and currently, only 18% of total PoE capacity is being used. The non-working AP with the flashing red light initially draws 0.9W when plugged in, but then the switch immediately reports overload, meaning it's either trying to draw more than 30W or there's a short. The unmanaged switch also lights up the "PoE Fault" light for the port that the AP is plugged into.
However...the head scratcher...it will power on using a power injector (Trendnet TPE-101I) and appear to work just fine. I did get output from console, did a factory reset, and reprovisioned it. During the whole process, I didn't see anything out of the ordinary. Then again, I don't really know what I would be looking for specifically.
It seems unlikely that the three different Enterasys switches we've tried, as well as the unmanaged PoE switch are not behaving properly, especially when the other APs are working fine on the Enterasys switches, and the unmanaged switch was used to provision 4 APs at a time with no problems.