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Forum Discussion
hquan2001
Feb 12, 2022Follower
Help Setting Up AT&T Gateway with Netgear Nightawk C7800
I used to have COX internet where the coax cable was used, now that I have upgraded to AT&T Fiber internet, I had to use this modem and ethernet combo to my Router. The problem that has been ripping...
michaelkenward
Jan 15, 2022Guru - Experienced User
Ziiar wrote: I have tried a factory reset on the Netgear and run the setup from scratch but setup fails because it still can’t detect the internet. I have reconnected the XFinity gateway and now everything is fine again.
Did your juggling with devices follow the strict order in which you have to do things?
Be sure to restart your network in this sequence:
- Turn off and unplug modem.
- Turn off router and computers.
- Plug in and turn on modem. Wait 2 minutes for it to connect.
- Turn on the router and wait 2 minutes for it to connect.
- Turn on computers and rest of network.
Do this after you have reset the R6700.
shadowsports
Jan 15, 2022Hero
- FURRYe38Oct 06, 2021Guru - Experienced User
Is Armor or Smart Parental Controls enabled on the router?
- Laurent78Oct 06, 2021AspirantYes they are.
But if the IP adress were static, I would be able to set the DNS, so I do not see how it is related.- FURRYe38Oct 06, 2021Guru - Experienced User
Amor and Circle use there own DNS services so they will prevent any custom DNS changed being used on the router. So if you want to use custome DNS on the router, these two features need to be fully disabled.
Laurent78 wrote:
Yes they are.
But if the IP adress were static, I would be able to set the DNS, so I do not see how it is related.
- plemansOct 06, 2021Guru - Experienced User
what modem/gateway do you have?
What happens when you change the dns provider?
- Laurent78Oct 06, 2021AspirantMy Netgear RAX10 router is behind a router provided by the ISP. As I said, I cannot change the DNS because my IP address is dynamic and provided by the ISP.
If I change experimentally to static IP address in the settings, I am able to change the DNS (in other word these two settings are exclusive).
I can change the DNS settings in the IPv6 settings though.
So I don’t understand this limitation on IPv4.- FURRYe38Oct 06, 2021Guru - Experienced User
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.
Laurent78 wrote:
My Netgear RAX10 router is behind a router provided by the ISP. As I said, I cannot change the DNS because my IP address is dynamic and provided by the ISP.
If I change experimentally to static IP address in the settings, I am able to change the DNS (in other word these two settings are exclusive).
I can change the DNS settings in the IPv6 settings though.
So I don’t understand this limitation on IPv4.
- Jeronimo454Oct 08, 2021Tutor
It doesn't matter if your ISP gives you an IP dynamically or not for you to be able to change the DNS server.
Login to your router --> the basic home page displays --> select internet --> here you should arrive to the page where you have selected to get an IP dynamically from your ISP. --> Scroll down to see "Domain Name Server (DNS) --> under "Use these DNS servers" you can enter the IP's of your preferred DNS servers.
I also have a dynamic ip address from my ISP and I do the same.
- Laurent78Oct 09, 2021AspirantAlright so it may be due to the smart parental control. It is strange to me because this field is accessible for me only when I simulate to set a static IP.
Do you also have the V1.0.5.108 software ?