They have cable (xfinity) but they do have their own modem and router for it instead of renting.
Nothing else in the room seems to lose connection but I am not positive on that because that is the only thing they have noticed. Should I have them set up a laptop or something and walk around the room searching for a connection at that time?
I will ask them to unplug everything except the tv and streaming device and see what happens.
They have nothing including the items above that you listed that they can think of on a timer.
As far as the router parental controls can they pinpoint areas of the house or just specific devices? I have never used them before.
I will have them unplug the other devices and report back.
Thanks for all your help!