My setup, I have DSL service with a modem connected via ethernet to my Airport Extreme, which provides wifi to my house. My Airport Extreme has always given me an error message of sorts: Double NAT, and seemed to be recommending that I switch to bridge mode. I am ignorant about routers and never did it. I've always had poor signal strength. Tonight, I tried switching to bridge mode and it seems to have improved my range. Is this a placebo effect and the two are unrelated? Also, previously when I had DHCP ad NAT turned on, it listed all the devices connected to my wifi by name. Now it only lists the MAC addresses, which are of course, cryptic. Should I leave bridge mode enabled? It seems to have improved internet connection. What are the disadvantages to that?