I have an existing site with 5 1240AG Access points and have never had any problem; a few months ago we added 2 more to the existing building and still had no problems.. then a few weeks ago we added an additional building connected via Fiber and added 6 more new 1240AG's (all on the same subnet) and now a couple of times a day all the new AP's in the new building suddenly drop! a few times (or more) it has alos caused the 2 new ones in the original building to also suddenly drop. when i say drop i mean they are no longer accessable, i can no longer ping / snmp / web / telnet to them.. the only way to recover them is to remove power then add it back..
all AP's are on POE (Cisco POE adapters). we have tried seperating power to different UPS's, swapped out the switch (of course the fact that we are loosing AP's in two different buildings at the same time seperates all infrastructure as well)...
there has to be something that these AP's are broadcasting to one another that is causing this, but not affecting the older ones but i cant figure out what?
there are the software versions:
new AP's - 12.4(21a)JA1
old AP's - 12.4(3g)JA
as i was writing this it happened again, first 5 of the 6 new ones dropped at the same time, then the 6th one a minute latter, and now the 2 in the original building just dropped (a few minutes after the first ones)... and of course all 5 of my original units are all up and running fine.. i have chekced the logs on them and there is nothing to explain it
any help is greatly apriciated... thanks