Lost wireless connection. have lost wireless connection and am unable to re establish it I've been

Question

have lost wireless connection and am unable to re establish it I've been havinga continuous problem staying connected to my WLAN. I get connected but then shortly after disconnected. My laptop doesn't seem to be able to keep me connected. Everytime I reconnect my firewall needs to be turned on again. I can connect to other wifi points fine...coffee shop, frien's house, work...but at home where I have Verizon FIOS (other PCs and laptops in my home don't have the problem) router.