Bought a new cable modem and now my Xbox One either can’t get online or won’t connect to Xbox Live.

TP-Link TC7620 modem wired to a Linsys EA8500 router. Xbox is wired to router.

I am seeing a DHCP error when I check the network on the Xbox.

I had been using an Arris Surfboard modem; not sure which model but I know it only had half the available speed the new one does.

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The Arris worked. I switched modems and called Spectrum to give them the new MAC address for the TP-Link modem. That is all that has changed.

Why does nothing work now gawddammit?