Newly installed cluster of 40 IAPs (v6.5.4.2). Replaced AP125's with 3400 controllers.. no issues for years.. replaced the AP125's with IAP305's. Put AP's in the exact locations of the existing ones. We notice the coverage is worse. People complaining of low signal strength even when they are not even 40 feet away from the AP. Could be interference but nothing seems to be inbetween. We have the min/max transmit power set on 9/12 and client match enabled. We just order Airmagnet to help us determine the issue. Is there anything in the config we can tweak to help?