Cable homes (Xfinity, Spectrum)
Keep a DOCSIS 3.1 modem (or the provider gateway in bridge mode) as the handoff and connect any Wi-Fi 7 router behind it. Match the router's WAN port to the plan: 2.5GbE covers plans up to 1 Gbps with headroom; 2 Gbps+ plans need faster WAN.
Fiber homes (AT&T, Verizon Fios)
There is no modem to buy — the ONT or gateway is installed by the provider and stays. Connect the Wi-Fi 7 router to its Ethernet handoff (IP passthrough on AT&T, direct ONT Ethernet on Fios) and disable the provider Wi-Fi to avoid competing networks.
- No certified mainstream Wi-Fi 7 cable combo exists; combo listings are usually Wi-Fi 6 or older.
- Budget approach: keep the provider handoff, add an affordable Wi-Fi 7 router.
- Upgrade trigger is plan speed and coverage — never the combo label.