4K PVR and wireless set top boxes


Seem to have a bit of an anomaly going on in my house. Everyday at 18:56, the wireless box on my main floor loses connectivity with the 4K PVR. 


I have rebooted everything and nothing changes. When watching a recorded show, at 18:56 we see the error that the box can't communicate with the PVR.


I've checked router logs and don't see anything that would point to a network issue.


Any ideas?