I have had terrible internet service since my modem was upgraded 6 months ago. Any device connected to the Comcast modem via the built in WiFi or 2 different stand alone routers (Netgear and Google Mesh) is routinely dropped sometimes as often as every 15 minutes. Comcast put in new cable from the street for the upgrade and I am now on my 3rd modem. Each time the modem is replaced or factory reset it works perfectly for 2-3 days then the drops happen. I have a computer hardwired to the modem and it never seems to drop. I have tried changing the ethernet cables and unplugging various devices without improvement. Do you think trying the modem in bridge mode might help? Should I purchase my own modem? For the record I have Comcast Business class and they increased my speed from 75 to 150 mbs during this process with no improvement.