I've been trying to connect my Vista computer up to our ATT wifi and I haven't been able to. I tried calling ATT and they weren't able to connect me and tried to transfer me to some tech support that would've charge a lot more than I was willing to pay. I'm connected on my Windows 7 (as well as my Droid phone) and have connected with this device on other networks, such as at work or a friend's house. I've tried all the basic things such as restarting the laptop, the router etc. The Modem from ATT doubles as a router, and I've tried plugging in an additional external router and placing the ATT device in Bridge mode so that it only acts as a modem and uses a different router, but I've had the same issue with the external router. I'm not sure how to proceed. I've made sure that the Adapter is up to date and I know that the IPv4 and IPv6 are both setup to do all things automatically. What's next?