Help getting started with Roku devices, including setup, connecting your device to your TV, linking a Roku device to your account at my.roku.com/link, adding channels, subscribing to services, and more.
Duplicate post, but this time at least we have something to go on. Please explain exactly what the error is. The URL you should be using is https://my.roku.com/link . If you're using any other URL, you aren't in the right place. If that is the correct URL, what happens when you enter the code from the Roku screen?
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.