I have my IoT devices (TV's) on an isolated network (separate from my computers/tablets/phones). I was trying to use the Roku app on my phone and it isn't able to discover the Roku devices (a couple Roku TV's and one Roku device). I was wondering anyone had information regarding what ports/services need to be available through my firewall between the Internal NW (where my phone is) and my IoT NW (where the Roku TV is)?
This has been discussed before, but it's not clear if there's a solution:
https://community.roku.com/t5/Roku-Mobile-App/Roku-phone-app-port-forwarding/td-p/501437/
The link provided is now archived and unavailable.
I also can't find the port needed for Roku discovery
Here's the discussion: