I'll try to be as detailed as possible. I live in a townhome with plaster/concrete walls. I work from home on a laptop with a broadcom 54g card. My router is a WRT54G v2 with latest Thibor firmware. It has two linksys 7dbi antennas at different angles. My router is in the next room over about 5.5 feet off the ground. the router and myself are on the top floor. Every so often, maybe 2-5 times a day, I will be browsing (i do web development) and suddenly i can no longer. My connection speed drops from 54 to 36, to 24, to 11, to 5, and to 1 mbps, still cant even get to the router page to desperately try to change the channel before it cuts me off completely. when it is acting normal, the signal is strong and very fast (even 2 floors down in a corner i'm still at 54 mbps) usually, i have no luck and eventually it drops my signal. i usually keep a cheap laptop plugged in directly to the router in the other room in case i need to change the channel. I can be jumping from 1, 6, 11, and all in between and eventually I still loose connection at some point. Sometimes i cant even connect on ANY channel. i do have a wireless phone but it's a 5.8 ghz. i have no other wireless devices in the house aside from a few cell phones. my microwave is downstairs and there are no other electronics on in the other room with the router. the door is open. i'm literally maybe 25 feet from it. i cranked my mW up to around 80. lowered my beacon to 50 and lowered my RTS and fragmentation to 2304. my only guess is someone has a 2.4 ghz phone somewhere, but i dont see how something like that can be KILLING my wifi this badly. please help. i'm desperate because i make a living off of making sure i'm connected so i can get my work done. thanks!