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Forum Discussion
donawalt
Jul 15, 2025Mentor - Experienced User
Device flipping to celllular/disconnecting when on WiFi? Read this for possible solution!
Technical Analysis and Repeatable Evidence of DHCP/Routing Bug in Netgear Orbi 971 (Router Mode)
Summary of Issue
In environments using the Orbi 971 system in router mode, certain iOS/iPadOS ...
lostinphotoland
Aug 08, 2025Tutor
After repeat testing I have discovered using internal DNS in addition to external DNS still causes the issue, once I set my DNS to EXTERNAL only, I was unable to reproduce the issue. The only thing I've noticed while stationary on my desk is that I seem to drop a level on the Wi-Fi indicator, and then it immediately returns. I've done various speed and load tests with no adverse issues indicated.
iOS 15.5
iPhone 15 Pro Max
donawalt
Aug 08, 2025Mentor - Experienced User
lostinphotoland exactly - among other issues, there is a failure mode tied to either the Orbi’s DNS relay or 6 GHz bridge/ARP handling. Static IPv4 protects against DHCP lease loss, yet when you use a static DNS assignment to the router, the device still relies on the Orbi for both DNS resolution and layer-2 forwarding, both of which can silently break while Wi-Fi remains associated. We want ALL DNS/DHCP messaging to the Orbi eliminated, per my steps above!