After a 10 day power outage followed by 2 weeks of no internet service, I finally got the latter back. Now, neither of my Rokus will recognize the 5GHz but only the 2.4 GHz channel from the router. (Both connected to the 5 before the outage.) My phone and computer are connecting currently to the 5 with no problem. On the 2.4, I can get none of the apps on the Roku to work. I have tried every trick listed on this site: resetting the Roku, network connection reset, resetting the router, changing the channel on the 5GHz to below 50 or over 160. No matter what I do, the Roku cannot see the 5. I'm ready to throw the **bleep** things away and go with another product that works. Is there an actual solution to this problem?
What are all your Roku model numbers having this issue? Can find them under Settings/System/About on the device(s).
Also, router model number and ISP (internet service provider) may be helpful.
Rokus are 3910X and 3930X. Router is Linksys R 63.
Both had no problem connecting to the 5GHz channel before the outage, but now do not even see it. Only the 2.4 comes up when I scan, and it cannot handle streaming.
@byrnesms, the 3910 and 3930 are 2.4GHz-only models. There's no way they ever connected to 5GHz. I believe the first "Express" model to be 5GHz-capable was the 3940.