Up until lightning killed my second Airport Express, I was ablr to use two Expresses (one hardwired directly to my DSL modem) to keep my whole house with a wi fi signal. I have a Netgear wireless range extender that says that it will work with any wireless wi fi unit. When I plug in the netgear extender my MBP sees the NETGEAR network but will not let me use it to connect to the internet. It says it is plug an play but obviously not with my express and my built in airport. Any thoughts as to what I am doing wrong.