I have had this unit for several years. it is running on factory settings. WPC54G to WAP54G to BEFSR41 to modem. Also 3 hardwired PC's to router. 3 nights ago I booted my laptop, placed the card in and could not find the WAP. (did find a neighbors Motorola) After several resets and some research I found I can lock on to the WAP <ONLY IF> I unplug the wap from the router. Contacted Linksys, updated Firmware to 3.xx. Update went correct. Same problem. Must unplug WPA to get a lock. Once plugged in communication is lost. Is this thing shot?