I have had the same or similar problem since June 2022. Roku works on my computer and android devices, but not on my Roku devices, a 4630X and a 3820X. I only listen to Pandora on my Roku. My error message is exactly: "Unable to automatically sign in. Roku failed to provide required account information. Please log in using email and password." I put in a request to Pandora support and Roku support. They each blame the other company. I had no problem listening to Pandora on Roku prior to May, 2022. So one or both companies made system Unable to sign in changes at that time. I've had my Pandora account for years and now I'm paying for a service that doesn't work and I can't talk to Pandora support. Frustrating!!
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