I have been receiving complaints for a period of time from one of our sites concerning the connection stability. There are 18 c1130 series access points on site with both 11g and 11a turned on. The switches we are using at the site are ce500s with POE.
I've noticed using Netstumbler and inSSIDer that the signal strength (dB) is yoyoing up and down for all of the access points.
See also the attached graph for illustration. The time index is along the bottom and the signal strength is along the side. This graph only shows three of the APs.
I can't imagine that this is normal and I'm thinking, especially for those users who are near the outside range of the APs, that this is the reason they are loosing their connections.
This is the first time I've noticed the APs acting like that. We've 300+ sites with cisco APs and i've been on the team for 2 years.
Any ideas as to what the reason is?
If I had to guess I'd say it was power related. But I don't see the APs complaining in sho log.
Other than that, this is a downtown location. There are 18 APs on site and another friendly 20 (estimate) neighbouring APs. It's not pretty for 802.11g.
But we have 802.11a enabled as well and those radios show the same yoyoing signal.
Thanks for any advice,