OT: Wireless Signal Strength

Dear all,

I am having a strange problem with a client. He has around 25 access points
installed in a 8 floor building. They are using cisco AP 1140 with 2 WLCs
5508 for management. Things were fine in the beginning but now the problem
is with the signal strength. The signal bars on any system before connection
shows excellent strength, but as soon as the system gets connected, the
signal strength starts to decrease and becomes poor. this causes latency and
timeout. Browsing becomes really slow and wireless users are suffering.

Wireless Lan controller runs an algorithm called RRM, which automatically
adjust Tx power, channel assignment and many other parameter. If there is
someone in this group who know can tell what settings on WLC need to change.
Could this be a result of some power issue on the catalyst 4500 switch which
is a POE supported? Or is this some malware kind of thing?

By the way wired users have no such problem (latency, delay etc)

-- 
Khurram Noor
Blogs and organic groups at http://www.ccie.net