I have an older model of "Roku HD" (bought in 2010) that had no problem connecting to my old (linksys) router and AT&T DSL. I switched to Comcast and also replaced the router with Airlink 101 N router (AR670W). I set up an "unsecure" wireless connection - it broadcasts and does not require any password or use encryption. I'm able to connect 3 of my computers to the network but Roku fails. Most of the time it fails on "connecting to wireless network" but a couple of times it gave a green light for "connecting to wireless network but then a red light for "connecting to local network".
In order to figure out whether it's the internet provider or the router issue I connected my old router to the Comcast modem and try connecting Roku again. From Roku: "connect to wireless network" passed, "connect to local network" passed but then "connect to internet" failed so I was not able to connect to the internet using Comcast and my old router. So now I'm confused. Is this an issue with the new router or with Comcast?
Is there any way to troubleshoot it any further?