CBC and CTV news freezes and sound stops any suggestions?

I connect wirelessly and CBC and 4K channels do this frequently. I turn off and unplug everything. All set top box pvrs up to modem and router. I then plug in router and modem and let them reboot. Then I plug in my hub then finally the set top pvrs. It lasts anywhere from a day to a week before I have to do it again. Been like this for a couple years now.