AC1750 keeps dropping wifi connection

[Sueyogi57]

We have cable service with Atlantic Broadband, and we recently purchased a NetGear AC1750 wifi cable modem router. It will stay connected to the internet for a few hours (like now), then the connection drops for several hours, then we power off / power back on and the connection comes back for a few hours.  This happens daily. What, if anything, can we do to maintain connection to the internet?  The Atlantic Broadband tech support can see the router on their end with no problem. Why does this keep happening??

[FURRYe38]

Have they checked the signal and line quality up to the modem? Just seeing it on the line isn't enough.

Be sure there are not coax cable line splitters in between the modem and ISP service box. 

Be sure you are using good quality RG6 coax up to the modem. 

Any Wifi Neighbors near by? If so, how many?