Issues with iPhone7 connection at home

Can anyone give me some guidance as to why my iPhone7 has bad connection when I am at home? It is bad whether I am inside or outside. The issue does not happen when I am at other places so I don't think it is the phone. Someone previously suggested I turn the VOLTE off and switch to data only instead of voice and data. I don't really understand how that would solve the problem since it only happens when I am at home. Something has to be running some sort of interference with the connection when I am home.  I did not have this issue with previous phones however. The only thing new was that I switched to Panoramic WiFi with Cox.  Any suggestions as to what I can explore to see what is causing this issue at home?