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Won't connect through the modem
I replaced a failing Xfinity router/modem with NightHawk CM1150V and AC1200 (because the local tech store was sold out of a combined unit and I really coud not wait for a week to restore wifi.) N...
The wired devices are Windows 10 and connect through the Nighthawk, are recognized with a green LED and connect to the internet just fine. When I added the AC1200 Smart Wifi Router, it also connected with a green LED and the network was accessable however internet was not accessable, even after using the 'Setup Genie'. After several resets of both modem and router, including both at the same time, I got nowhere and called tech support.
This statement is whats going to make me question you. Do you have other devices connected to the cm1150v other than the router?
If so, thats more than likely whats causing your issue. The cm1150v isn't a router. its a modem only. And the vast majority of ISP's only assign 1 public IP address. Meaning that only 1 device can be connected to the modem at a time. That 1 device can use wan port aggregation (the R6220 doesn't have this feature) to reach speeds >1gig but it can't have more than 1 device connected.
Again, this is if your isp doesn't support more than 1 public ip address. And thats the majority of them.
If you connected your pc to it, that public ip address is being assigned to the pc and not to the router.
so try this.
Disconnect all the devices from the cm1150v, power it off and the router off.
power on the cm1150v. give it several minutes to fully boot.
connect port 1 of the modem to the wan port of the r6220
power on the router. give it several minutes to fully boot.
try to setup/us the router.
> [...] The wired devices are Windows 10 and connect through the
> Nighthawk, are recognized with a green LED and connect to the internet
> just fine. [...]
"the Nighthawk" means the CM1150V modem? How many "The wired
devices" did you connect to the CM1150V modem? What, exactly, did you
connect to what, exactly? (Hint: If a device has different types of
Ethernet ports, then "connected to device" is not enough detail.)
Visit http://netgear.com/support , put in your model number, and look
for Documentation. Get the User Manual (at least). Read. Look for the
description of "Ethernet ports 1-4", and the following:
Note Your cable modem comes with plugs that cover Ethernet ports
2, 3 and 4. For more information about Ethernet ports 2, 3,
and 4, visit netgear.com/support/product/CM1150V.
> [...] even after reading the user's manual.
Which "the user's manual"?
Unless your Xfinity service is unusual, you should be able to connect
exactly _one_ device, the R6220 router WAN/Internet port, to one of the
Ethernet ports on the CM1150V modem. Your client devices should be
connected to the router (LAN Ethernet ports or wireless LAN), not to the
modem.