Home Internet Goes Out Every Couple of Hours

Adding to the pile here. It cuts out every few hours and needs to be rebooted. Sometimes will cut out 3 and 4 times an hour. Was promised I would have 5bars and can't get any stronger than 2 no matter the location. 

I called support and they were polite but just told me engineers were working on it but could provide no other details. 

I hope a rep comes into this thread to shine some light on this as it's clearly pretty wide spread.