Welcome to the Forum, @jeffrey_martin_5! 
When you set up the hotspot on your tablet and were able to add the Cam v4 to that Wi-Fi, did you use the same SSID and password as the network that’s giving your Cam v4 connection problems? If not, then I’m wondering if that would be worth trying. If you can turn off your home network and connect the Cam v4 to a hotspot that’s using the same credentials as your home network, then maybe the Cam v4 would connect to your home network when you turn that back on and turn off the hotspot?