I have a tower with 3 ap's on it running 2.4ghz. I have the dbii 500 mW card in them. I am having an issue with some customers on these ap's. Their signals are in the low -70's with SNR's around 25 but their ccq's are kinda low. They will have good throughput but when you start doing a lot of traffic to them their throughput drops and usually their signal disconnects and reconnects. I have tried many things and can't figure out what to try next or what could be causing this. We have had this tower up for years without a problem like this. We have also used the Ubiquiti 400 and 400mw cards as well. Please any help would be appreciated!!