What changed?
The browser started a request over one network route, but the device lost that connection or acquired another during loading. This can happen when switching Wi-Fi access points, between Wi-Fi and Ethernet, or when a VPN reconnects.
Common scenarios
- Switching Wi-Fi networks or mesh access points.
- Connecting or disconnecting Ethernet.
- A VPN reconnecting.
- A network interface resetting.
- A brief loss of Wi-Fi signal.
What should you try first?
- Let the network stabilize, then refresh the page.
- Check that the device stays on the same Wi-Fi network.
- If you use Ethernet and Wi-Fi simultaneously, test using only one connection.
- If you use a VPN, compare without it if your security policy permits.
If the error keeps appearing
Check connection quality rather than only the browser. See Why is Wi-Fi slow? and What is ping?.
Could the web server be responsible?
This error code is generally associated with a change in the device's network path, not a typical HTTP response from the web server.
Frequently asked questions
Does ERR_NETWORK_CHANGED mean my public IP changed?
Possibly, but not necessarily. A local network route or interface change is enough.
Why does it happen with a VPN?
A VPN changes the network path, DNS and often the exit IP, so an in-progress request can fail.