New Modem, Same Router, "ISP DHCP does not function properly"

Hello! 

I just had activated the Arris S33, and I have an ASUS ROG GT-AX11000. I do have everything going through a Netgear Nighthawk 8000 switch. 

My router and my OOMA VOIP are not receiving internet signal. I've factory reset my router and my OOMA. I've restarted everything numerous times. 

Currently, my router says, "Your ISP's DHCP does not function properly." I've contacted xfinity chat after referencing: https://forums.xfinity.com/t5/Your-Home-Network/Your-ISP-s-DHCP-is-not-functioning-properly-ASUS-router/td-p/3331178# and they've assured me that they sent the "provisioning signal" to my modem. 

It's still not working.