Help & troubleshooting for network issues, including connecting your device to your home Wi-Fi network, connecting to public networks, troubleshooting wireless issues & ethernet connections, and optimizing streaming performance.
I've never tried an extender. I just use more than one access point in the house, all wired into my Gigabit network. But I have heard some users report success. If you're going with 5 GHz, make sure they aren't using a DFS channel, or the Roku won't see it.
Dan Roku Stick (3600), Ultra (4640), Ultra (4670), Premiere (3920), Insignia 720p Roku TV, Sharp 4K Roku TV, Nvidia Shield, Windows 10 Pro x64 running Serviio and Plex on a wired Gigabit network.
When I moved into my current place the internet modem was in the kitchen on other side of house from the bedrooms where internet was needed. The landlord my Niece's ex,was my roommate, he installed one, so he used it with his roku, while I just used 2.4 & 5 ghz. I logged on to it originally, but didn't see any bump in performance from signal in the clear. Now the modem is in the bedroom, so no more need for it.