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Forum Discussion
air_sinny
Apr 12, 2022Aspirant
Nighthawk Wireless Router with Xfinity Arris kicks off internet every 8-14 hours
I have a Netgear AC3200 wireless router in access point mode taking a signal via wired network from an Arris Xfinity (white) modem. We got this modem from Xfinity over the past month and the internet...
FURRYe38
Apr 12, 2022Guru - Experienced User
What Firmware version is currently loaded?
What is the model# of the Internet Service Providers modem/ONT the NG router is connected too?
air_sinny
Apr 12, 2022Aspirant
the Modem is ARRIS Group TG4482A
Serial# C094354E968F
- air_sinnyApr 12, 2022Aspirant
need to still get the firmware #
- air_sinnyApr 12, 2022AspirantFirmware is 1.0.4.76
Need to update but could this be causing problem ?
- FURRYe38Apr 12, 2022Guru - Experienced User
Your ISP Modem already has a built in router and wifi. This would be a double NAT condition which isn't recommended. https://kb.netgear.com/30186/What-is-Double-NAT
https://kb.netgear.com/30187/How-to-fix-issues-with-Double-NAT
Couple of options,
1. Configure the modem for transparent bridge or modem only mode. Then use the NG router in router mode. You'll need to contact the ISP for help and information in regards to the modem being bridged correctly.
2. If you can't bridge the modem, disable ALL wifi radios on the modem, configure the modems DMZ/ExposedHost or IP Pass-Through for the IP address the NG router gets from the modem. https://kb.netgear.com/25891/DMZ-on-NETGEAR-routers
https://kb.netgear.com/24086/How-do-I-set-up-a-default-DMZ-server-on-my-Nighthawk-router
3. Or disable all wifi radios on the modem and connect the NG router to the modem, LAN to LAN configure AP mode on the NG router.I would try option #2 first...
You might downgrade FW to v.68 or v.62 on the R8000...
- air_sinnyApr 12, 2022Aspirant
I do have the Arris / Xfinity provided wifi signals turned off. And the Nighthawk in Access point mode. I will look to those other settings.
As another option, I bought a Netgear Modem w Voice (NETGEAR Nighthawk Xfinity Modem with Voice (CM2050V) Cable Modem) to replace the Arris.. will this have the same issue? or because they are all Netgear will they work better together. The cable modem is in a part of the house that is remote (utility closet) and not conducive to signal coverage. That is what I don't use the router and instead use the Nighthawk router in a more centrally located spot with some extenders as access points.
- air_sinnyApr 12, 2022Aspirant
and thank you for all this help, btw!!