I have used U2B on the 4k a few times.
I don't have 4k tv so just 1080p at most. It's good.
On the other hand the wireless box says "this device is too old, get an exchange" .... this was new a year ago. I assume it gets updated as the other box, so the IPV5050 just doesn't work with the app?
Solved! Go to Solution.