Best Answer speechles , 27 March 2020 - 09:20 AM
Use your Emby server dashboard. Find the devices tab. On that tab you will see all the Roku devices that have used the server. Delete all the devices that show as a Roku. Do not worry the Roku devices will be able to still connect. The devices will recreate after their initial connection. This is just a list to show who has connected to your server and with what application. It keeps track of their authentication token.
After you delete the devices go to the Settings of the Roku app. Choose "Reset Settings" and exit the app with the home button afterwards. Then restart the app and it should now remember. You will have to enter all your information again but it will be remembered after this step.
Please let us know if this does not work for you. Thanks.Go to the full post