F5F Stay Refreshed Power Users Networks Why can't my NETGEAR Nighthawk AC3200 connect to Wi-Fi? I need some help from you guys.

Why can't my NETGEAR Nighthawk AC3200 connect to Wi-Fi? I need some help from you guys.

Why can't my NETGEAR Nighthawk AC3200 connect to Wi-Fi? I need some help from you guys.

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KreeZis007
Junior Member
11
05-26-2026, 11:25 PM
#1
Hi, I bought a NETGEAR Nighthawk AC3200 router with a DOCSIS 3.1 modem (Model C7800) a year ago. It was working great in my old house with Xfinity before. Now that I moved, it won't connect to the new place. I called their phone support and they said the modem is broken, but I'm not sure if that's true because it used to work fine right after buying it. After moving, I unplugged it, put it in the box, took it out, and plugged it back in again. Also, some lights on the modem aren't working as expected. Any help would be awesome! Thanks.
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KreeZis007
05-26-2026, 11:25 PM #1

Hi, I bought a NETGEAR Nighthawk AC3200 router with a DOCSIS 3.1 modem (Model C7800) a year ago. It was working great in my old house with Xfinity before. Now that I moved, it won't connect to the new place. I called their phone support and they said the modem is broken, but I'm not sure if that's true because it used to work fine right after buying it. After moving, I unplugged it, put it in the box, took it out, and plugged it back in again. Also, some lights on the modem aren't working as expected. Any help would be awesome! Thanks.

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bex04
Member
86
05-27-2026, 06:03 PM
#2
What does the modem status show? Page 23 in the user manual - https://www.downloads.netgear.com/files/..._UM_EN.pdf I would also factory reset the unit -- see page 111 in the above manual.
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bex04
05-27-2026, 06:03 PM #2

What does the modem status show? Page 23 in the user manual - https://www.downloads.netgear.com/files/..._UM_EN.pdf I would also factory reset the unit -- see page 111 in the above manual.

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BHLxNJx
Posting Freak
881
05-29-2026, 12:40 PM
#3
Do you think your coaxial cable to the modem is getting a signal from Comcast?
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BHLxNJx
05-29-2026, 12:40 PM #3

Do you think your coaxial cable to the modem is getting a signal from Comcast?

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mini_man3000
Member
149
05-29-2026, 12:50 PM
#4
Did I reset the factory before calling support? No, it didn't work. To fix things on the router's login screen (page 23), I need to activate the modem with Xfinity, but that isn't possible for me at all. Even though I've tried many times, nothing has helped.
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mini_man3000
05-29-2026, 12:50 PM #4

Did I reset the factory before calling support? No, it didn't work. To fix things on the router's login screen (page 23), I need to activate the modem with Xfinity, but that isn't possible for me at all. Even though I've tried many times, nothing has helped.