Aruba IAP-105 in reboot loop

[SYNACK]

I have a set of several IAP-105 controllers running

the Aruba OS in virtual controller mode all running over gigabit PoE ethernet

links. For the first several months this worked fine but now one of the APs is

stuck in a reboot loop.

 

It goes through the standard power cycle of

blinking a red power light then a green power light. Power then goes out and the

ethernet blinks green then red. The ethernet light then goes green again and the

power light begins to blink until it finnishes booting and the power light

becomes stable. The radio lights go red for a while and then blink green before

the AP resets and it starts again.

 

It shows up for a few seconds in the

controller page before it is removed again.

 

I have tried resetting the AP

to defaults using the reset button for five seconds when plugging the AP in and

have also tried turning off the auto join feature and deleting the AP from the

list in the controller web page.

 

If auto join is off the AP boots fine

and stops at the point where the power and ethernet lights are solid green and

the two radio lights are red.

 

I have also tried resetting it and putting

it on an isolated network segment at which point it also boots fine and stops

with all lights green other than the 11g light which is red.

 

All APs are

on the latest firmware avalible.

 

 

The only thing I have not tried is

wipeing all of the APs and starting again from scratch which is something I

really would like to avoid especially as I don't know if it will work or if it

will put more APs into this state.

 

If anyone has any ideas or clues as to

how to fix this dodgey AP or check some deep down hidden configuration to see if

it is the problem it would be greatly appreciated.

 

Thanks.

 

Cross posted to Aruba forums: http://airheads.arubanetworks.com/vBulletin/showthread.php?p=13960#post13960

[SYNACK]

Found the cause of this eventually, not really even to do with the AP in the end. Bad wireing, i.e. a seven meter overhead span of cable in a pipe barely supported by a wire and so saging in the middle. It rained and the pipe filled with water which easily seaps through indoor grade cat5e.

 

This bad wireing meant that PoE power actually reaching the AP was way below what it should have been and so when the radios kicked up to broadcast power the supply was insufficient and the AP died/browned out then rebooted and started the whole game again.