it does affect all devices - laptop, phones, google devices, tv's, etc
What Mouth and Dark are asking is if you have devices directly wired to a LAN port of your router with an Ethernet cable (Cat-5, -6, etc). If so, do these devices also lose Internet connectivity?
If you only suspect your problem is WiFi, the problem is just wireless signals from the router. However, if wired devices are also losing connectivity, it could be the internal modem of the Panoramic or the signal from Cox.
If you could trace the coaxial cable from the Panoramic to the wall-plate, how many splitters do you see? A splitter(s) could also be behind the wall-plate. There are other places to look for problematic splitters, such as the outside box bolted onto the side of your house and the attic.
Thanks for the explanation. I just connected a laptop to the router via ethernet cable and will see what results i get for connectivity. I know there is one splitter between the wall and the router that goes to a cox business phone modem. But there is probably more outside i need to look at.
