Had been connecting to my Sky Netgear router via a 3Com wireless adaptor without any problems. Due to being stupid when I tried to add a new laptop, I ended up resetting the router. Now the laptop connects no problem, but despite checking the wireless settings online and trying to replicate the encryption details precisely on my adaptor set-up, my old PC is connecting to the router, but not acquiring the network address. It looks like a password problem, but I can't get my old PC back online. Would re-doing the wired connection help or what else should I try?