Can't watch IPTV on anthing besides Apple TV even on same wifi network

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Expected Behaviour:

Should be able to watch IPTV on any device while at home :

  • TV OS, Mac OS, Android 16
  • Apple TV 4k, Macbook Air, Pixel 9 Pro

Actual Behaviour:

IPTV runs as expected on Apple TV but fails to load 90% of the time on any other device. I’ve tried on Pixel 9 Pro, Macbook Air, and Windows 11 device. I have even tried running it from another device using the Apple TV as an exit node and it still doesn’t work. Any help is appreciated.

Debug Token: Pihole: https://tricorder.pi-hole.net/PeD25PUT/

Pihole2: https://tricorder.pi-hole.net/9dNkrmXf/