Desperately Seeking Solutions! NO TV signal nightly 11-11:40 p.m. or 11-12 a.m...

We moved our service/original equipment that we had for more than five years to our new home in May 2017. We had numerous problems with pixelating, freezing, jumping and having to constantly reboot our TV. We also had the ritual of NO Internet connection constantly. Technicians kept coming out and temporarily fixing the problem with the TV, but never fixed anything with the Internet issues. Besides the temporary fix we seemed to have a new problem whenever they tinkered with interior wiring, etc. We got so tired of technicians coming out and NOT fixing the problem that we just  put up with it for months and months. 

We finally called and got a technician out 1/29/18. Prior to calling we researched and talked to friends and family and realized the equipment was "Outdated!" We requested new equipment (modem), and got a new modem, wireless access and remotes. A steady Internet is also necessary to add different devices to your home. We got our new equipment and the Internet connection, TV pixelations, jumping was fixed. 

One exception....every night on our two wireless TVs we lose the signal at exactly 11 p.m. - 11:40 or 11 - 12 a.m. It is a huge inconvenience and very annoying. 

Desperately seeking solutions?! Does anyone have helpful information as to what could be causing this and how to fix it? I do not have a definitive researched solution just that is could be wiring interior or exterior. 

We contacted the technician via the number he left and his supervisor 2-3 times each with no response back. I talked to a technician at the 800-288-2020 number who informed me there was nothing they could do unless the problem was occurring when I call. I do not feel like being on the phone from 11-1 a.m. and receiving no solution. The average timeframe is about 2 hrs p/call. End result is to have a technician come by and giving up 6-hours of your day, four for there timeframe of the technician arriving, and possibly 2-4 hours to fix the problem. 

Thank you,

Lisa