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Forum Discussion
Mkstretch
Aug 02, 2025Aspirant
RBR850 Unable to join network
I have the rbr850 and 2 rbs850 satellites. I am running the latest firmware. This is a new setup. My devices every few days will disconnect from the Orbi router and when I try to reconnect it says “u...
plemans
Aug 03, 2025Guru - Experienced User
what modem/gateway is the router connected to?
- MkstretchAug 03, 2025Aspirant
My Orbi is plugged into an unmanaged switch coming from a moca adapter. My router is a fios gateway
- FURRYe38Aug 03, 2025Guru - Experienced User
If your ISP Modem already has a built in router and wifi. This would be a double NAT (two router) 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 Orbi 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 Orbi router gets from the modem. Then you can use the Orbi router in Router mode.
3. Or disable all wifi radios on the modem and connect the Orbi router to the modem, configure AP mode on the Orbi router.
https://community.netgear.com/t5/Orbi-WIFI-6-AX-AND-Wi-Fi-6E-AXE/Procedure-for-Factory-reset-of-RBS850/m-p/2367505/highlight/true#M53985
https://kb.netgear.com/31218/How-do-I-configure-my-Orbi-router-to-act-as-an-access-point and https://www.youtube.com/watch?v=H7LOcJ8GdDo&app=desktop
Try option #2 first...- MkstretchAug 03, 2025Aspirant
I have my fios router WiFi turned off and my Orbi router is in AP mode