Your ISP's DHCP is not functioning properly
This error message appears in the router when I try to hook up a new modem.
I've called in two times to try to resolve this, without success. The solution appears to be for Comcast to send a provisioning signal - whatever that is, but it appears that the techs on the phone I've interacted with aren't up to speed on this. Also, for the record, I have two Asus routers and when I tried to connect either one of them to the brand new Netgear CM1000 modem, I got this same error, so the likelihood that it is a defective router issue seems vanishingly small.
If anyone at Comcast can address this, it would be greatly appreciated.