Recast seems to be able to broadcast live channels perfectly on my fire TV 4k but recorded programs keep getting pixelated especially when there is any motion. It's really annoying. WiFi is great and my fire TV 4k is directly (Ethernet) connected to the same router as the recast.
How far was the Recast from the Fire TV device? A common problem is the Recast tries to send the signal directly to the Fire TV device instead of to the router. If the signal to both is about the same, they fight over who has control. There's a key sequence to access a secret menu to turn this behavior off, but I can't recall what it is.
Wonderful to see that someone has my same issue. My Recast receives and sends TV signals perfectly. It plays Netflix and other streaming services perfectly, on multiple TVs. What doesn't work is the Recast playing back a recorded TV show to a 4K TV stick. It pixelates after about a minute. I have tried both ethernet cable and wifi streaming to the stick, but still have the issue. I have taken all other devices off the 5 GHz channel and use that only for the Recast. I have reset the Recast and the Stick multiple times. I have even tried HD and SD recordings, but no luck. I really, really want the Recast to work - it is such a great idea. Appreciate any help.
A couple other peculiarities to my post above: recorded shows play back fine on an old Fire TV in a bedroom 30 feet away, and recorded shows play back fine when watching on an iPad. The Recast box and the TV with 4K stick are in the same console (3 feet apart) with the brand new Linksys router on top of the cabinet. Recast is hardwired into the router.