Trying to use my 2g Extreme to extend my network in my 4500 sqf, 2 story (with basement) house with a 5g extreme in basement. I believe my setup is very common, but perhaps not. Comcast modem in basement, Apple Extreme 5g wired off that and broadcasts wireless. Simple 8 port switch connected to that Extreme and into that is plugged all the hardlines for the rest of the house (up to first and second story). On second story I have an Extreme 2g (next to upstairs PC) I'm trying to plug a hardline into from that switch in the basement and set up to extend the network by broadcasting an identical wireless network. Can't get it it to work. When I try to plug PC into 2g Extreme instead of hardline from wall, no connection. Any ideas? It's so jacked, that after messing around with 2g router upstairs via Airport Utility, the basement router is messed up and won't pass signal directly to PC anymore via hardline and I have to truck down there and reset it. Thanks for any advice - I'm using the option detailed here: http://support.apple.com/en-us/HT4259 But it can't see the basement Extreme connected via Ethernet.