How to Fix ‘ERR_NETWORK_CHANGED’ in Google Chrome

Browsing the web in Google Chrome only to have your active page unexpectedly abort with the message “Your connection was interrupted. A network change was detected. ERR_NETWORK_CHANGED” (or net::ERR_NETWORK_CHANGED) is a frustrating disruption. This error frequently recurs every few minutes, cutting off video streams, file downloads, and online meetings.

The ERR_NETWORK_CHANGED error is an internal Chromium networking alert. Chromium continuously monitors your operating system’s network routing tables and IP address bindings. When an underlying network adapter rapidly changes states—such as switching between Wi-Fi and Ethernet, toggling a Virtual Private Network (VPN) tunnel, cycling IPv6 addresses, or suffering from a defective router DHCP lease renewal—Chrome preemptively severs active HTTP/HTTPS sockets to avoid sending data through invalidated routes. This tutorial walks you through practical methods to stabilise your network configuration and eliminate connection interruptions in Chrome.

Method 1: Flush Chrome Internal DNS and Socket Pools

Google Chrome maintains its own internal DNS resolver and active socket cache. If your computer switches network gateways, these cached sockets enter an invalid state, triggering the network change warning.

1. Open Google Chrome.
2. In the address bar, type the following internal URL and press Enter:

   chrome://net-internals/#dns

3. Click the Clear host cache button.
4. Next, type the following URL and press Enter:

   chrome://net-internals/#sockets

5. Click Close idle sockets, followed by Flush socket pools.
6. Restart Chrome and test if web pages load without interruption.

Method 2: Reset the Windows TCP/IP Stack and Flush DNS Cache

Stale operating system DNS resolver entries and corrupted Winsock socket catalogues cause the network stack to repeatedly drop and renegotiate local IP addresses.

1. Press the Windows key, type cmd, and click Run as administrator.
2. In the Command Prompt window, execute the following commands in sequence, pressing Enter after each:

   ipconfig /flushdns
   ipconfig /release
   ipconfig /renew
   netsh winsock reset
   netsh int ip reset

3. Restart your computer immediately to bind the clean networking stack.

Method 3: Disable IPv6 Protocol in Network Adapter Properties

Many home routers and Internet Service Providers do not fully support native IPv6 routing. When your operating system attempts to dual-stack IPv4 and IPv6, frequent IPv6 address deprecation events signal Chrome that a network change has occurred.

1. Press Windows + R, type ncpa.cpl, and press Enter to open Network Connections.
2. Right-click your active network adapter (Wi-Fi or Ethernet) and select Properties.
3. Under the “This connection uses the following items” list, locate Internet Protocol Version 6 (TCP/IPv6).
4. Uncheck the box beside Internet Protocol Version 6 (TCP/IPv6).
5. Click OK to apply changes.
6. This forces your network adapter to communicate strictly over rock-solid IPv4 protocols, eliminating sudden dual-stack renegotiation drops.

Method 4: Uninstall or Reconfigure Conflicting VPN Software

Virtual Private Network (VPN) clients create virtual TAP/TUN network interfaces. If a VPN uses an aggressive split-tunneling or kill-switch algorithm that flaps between states, Chrome interprets this as an continuous network alteration.

1. Temporarily disconnect from your VPN client.
2. If the error stops completely, update your VPN software to the latest release.
3. In your VPN settings, toggle the protocol from Automatic to a fixed protocol such as WireGuard or OpenVPN UDP.
4. If you recently uninstalled a VPN and the error persists, open Device Manager, expand Network adapters, right-click any leftover virtual TAP adapters (e.g., TAP-Windows Adapter V9), and select Uninstall device.

Chrome ERR_NETWORK_CHANGED Diagnostics Reference Table

Use the matrix below to assess the source of network change errors:

Observed Frequency	Underlying Root Cause	Recommended Solution
Error triggers every 5 to 10 minutes	Short DHCP lease time on router or IP conflict	Renew IP via ipconfig /renew; extend router lease time
Error occurs exclusively when VPN is active	VPN virtual TAP adapter flapping connection	Switch VPN protocol to WireGuard or update client
Error appears on laptop switching between docks	Dual active adapters (Wi-Fi and Ethernet competing)	Disable Wi-Fi when docked to wired Ethernet
Error accompanied by DNS_PROBE failures	ISP DNS instability	Switch DNS to Cloudflare (1.1.1.1) or Google (8.8.8.8)
Error occurs on all browsers simultaneously	Power saving mode sleeping network adapter	Uncheck “Allow computer to turn off device” in NIC properties

Preventing Network Adapter Sleep Glitches

Windows power management frequently attempts to conserve electricity by putting your Wi-Fi or Ethernet adapter into a low-power sleep state during brief moments of network idle. When new data arrives, waking the card triggers a network change event in Chrome. In Device Manager, right-click your network card, select Properties > Power Management, and uncheck “Allow the computer to turn off this device to save power”.