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Forum Discussion
davis_mc
Jun 10, 2026Aspirant
RS700 and Firmware
I should have saved my confirmation but I didn't. I recently got T-Mobile Metronet Fiber and turned out I has ti do a factory reset on my RS700to get it to work with the Fiber. I converted it fro...
- Jun 10, 2026
RS700 running V1.0.11.6 - experienced duplicate IP addresses. I am sure this suggestion will sound as silly to you as it did to me - try re-flashing V1.0.11.6. Yes, sounds silly, but it resolved my problem with duplicate IP addresses. You must download the V1.0.11.6 FW from NG support site and apply the flash from the file using the UI instead of online (Advanced/Admin/Router Update/Manual tab -select the .chk file from the zip). Please update thread with your results. If it does resolve your problem, we should open a case on FW flash procedure. I have turned off "Auto FW Update" to avoid surprises.
davis_mc
Jun 10, 2026Aspirant
I have and nothing. Sometimes a refresh will happen and it seems to change. Sometimes it doesn't. I have had, not a duplicate, but I had a decide have an ip address of 192.68.0.1. That ip is my gateway. So, I have no idea how it hit there.
but again, when I had Comcast, I had duplicate problems before but I remember, I changed the FW version and the problems went away for quite a while. Now, since I converted to Fiber and did the factory reset (with Premium Support on the line) I got connected to the Fiber. So that worked. Now, however, I have the duplicate problem. I opened another ticket under premium support but they said they would get back to me because it makes zero sense and they are saying what is going on in the router they haven't seen before.
I just figured I would try something/anything in the absence and since the duplicate IP is a common problem with this router I really don't have any hope they will fix it.
StephenB
Jun 10, 2026Guru - Experienced User
davis_mc wrote:but I had a decide have an ip address of 192.68.0.1 That ip is my gateway.
This is a bit garbled.
But it does raise a question - is the RS700 in router mode or is it in AP mode?
- davis_mcJun 10, 2026Aspirant
Sorry, I mistyped. "but I had a devices that has an ip address of 192.168.0.1. That IP is my gateway".
I hope that makes better since and I apologize for that.
Also, it is in Router Mode.- FURRYe38Jun 10, 2026Guru - Experienced User
Your ISP Modem already has a built in router and wifi. This would be a double NAT (two router) condition which isn't recommended. 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.
https://kb.netgear.com/20927/How-do-I-change-my-NETGEAR-router-to-AP-mode
Try option #2 first...
- davis_mcJun 10, 2026Aspirant
My ONT does not have a built-in router so it's not doing a dual-NAT.