My Roku is one of the very first models. After several hours of chats, talking and searching the forums and google, I still couldn't get my Roku to connect. I started looking at settings in my Comcast access point and finally tried changing the Mode from 802.11 g/n (where it is set by default) to 802.11 b/g/n. My Roku connected immediately. Which tells me that my old Roku is actually an 802.11 B, and that the access point will never connect to it until someone changes the mode.
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