I noticed that my roku integrations in home assistant weren’t functioning. They were instead throwing an error that “ECP command not allowed in Limited mode”. Luckily this is a pretty easy thing to fix in Roku settings.
Additional options were added to Settings > System > Advanced System Settings > Control by mobile apps > Network access. This is now defaulted to “Limited mode” which disables the access the integration needs. Putting this setting into “Permissive” or “Enabled” will fix the issue.