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Forum Discussion
server IP address could not be found
Router R7900P Firmware v1.4.3.88_1.3.50 OS / multiple ISP AT&T with a gateway router Model: 2Wire 5268AC I have been getting the error above in the subject line for about 6 months or so for UR...
Your modem already had 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.
Try #2 first...
#1 isn't an option with AT&T so I attempted #2.
I have set a DMZ on the AT&T router with the router as the permissible device. After a reboot of both routers, it works great for a little while.
And then it starts behaving in the same way. I don't want to move to option #3 as I really prefer managing everything through Netgear. Plus I use my guest wifi for my company provided equipment and I will lose the guest wi-fi if I go Lan-to-Lan.
As I may have stated earlier, I had my NG subtending off of my AT&T router for 4 years and it was never a problem until this year.