I have multiple TVs with ROKU. On one ROKU comes up OK but I am not able to connect to any of the apps. Spectrum wants me to sign in and HULU just sits and will not connect. It worked fine last evening. Rebooted the device and still has this issue.
Can you provide more information such as your device model number. Which Roku model numbers do you have and which ones are working and which are not. Roku makes several different players.