Iphone 16 wifi and data toggling constantly

My Iphone 16 is constantly switching from Wifi to Data. I have tried, Wifi Assist off, resetting network settings but to no avail. It is switching every 15-20 seconds. All other phones, computers, and smart tvs in the house do not have this problem. Any ideas?

iPhone 16 Pro Max

Posted on Aug 31, 2025 06:37 PM

Reply
5 replies

Sep 1, 2025 01:47 AM in response to DTWMountain

Given that all other devices in your home are functioning without any problems, the issue likely lies with the router’s configuration. Specifically, it is possible that the MAC address of your iPhone is not being whitelisted by the router.


Please be advised that the Private Relay, when configured for rotation, may cause this issue if the router is not properly configured for the iPhone’s Media Access Control (MAC) address. The MAC address is a unique identifier for each device. Get in touch with your ISP.


Private WiFi


Private Relay

Iphone 16 wifi and data toggling constantly

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.