Re: worried about one AP recieving large NAV fields for weeks ?
I would first verify that the actual signal exists. If you have access to Airmagnet WiFi Analyzer you will get all the information you need and have the ability to locate the device doing this. If not, contract a good Cisco wireless partner that does have this or a similar application to verify the actual existence of the problem. It could be a code bug but I haven't seen it myself and I don't see any info in the bug tool pertaining to it.