If you receive an error message Your connection was interrupted, A network change was detected, ERR_NETWORK_CHANGED, in your Chrome browser this post suggests ways to fix the problem. Although this post focusses on Chrome, you may also use these suggestions to fix sa similar issue in Mozilla Firefox, Microsoft Edge, Internet Explorer, or any other web browser.
Your connection was interrupted
What follows is a bunch of options those can be performed with any browser. But before you begin, disable your VPN software, scan with your antivirus software and then proceed.
1] Check Wi-Fi router
If you are using a Wi-Fi router to connect your computer to the internet, the primary solution is to check if the router is working fine or not. Sometimes, the Wi-Fi router creates problems that may result in this error message. If it is not functioning properly, you may restart the router and check whether it is working now or not.
2] Flush DNS cache
Flushing the DNS cache can solve this issue for you. This particular technique is being used by many people after a significant change in the network. To do so, open a Command Prompt with administrator privilege. You can search for cmd, right-click on the result, and choose “Run as administrator.” Following that, run this command:
ipconfig /flushdns
It doesn’t take more than 2 seconds to complete the whole process.
3] Reset Winsock
Reset Winsock and see if that helps you.
4] Reset TCP/IP
Sometimes, resetting your Internet Protocol V4 settings can troubleshoot this issue. For that, you need to run a simple command. To reset TCP/IP, open a command prompt, type the following and hit Enter:
netsh int ip reset resetlog.txt
This will reset all the registry values & settings for TCP/IP settings. After executing this command, you will have to restart your computer.
5] Check LAN settings
The wrong configuration of the proxy server can cause this issue, and you would not be able to access the internet on your computer. To address this concern, open Internet Options, switch to Connections tab and select LAN settings. Make sure the following option is NOT checked – Use a proxy server for your LAN (these settings will not apply to dial-up or VPN connections).
6] Check if any browser extension is controlling proxy settings
If you use any shared account service and you have installed any extension or add-on for that service, there is a high chance that the extension is controlling your browser’s proxy settings. As a result, you could get such problems when the extension fails to fetch any data from the root server. In Google Chrome, you can check this from Advanced Settings. If you have such an extension, you should disable it and check if your internet connection is back or not.
7] Use another DNS server
If you keep getting this same issue for a long time, you might need to consider changing the DNS server. In this case, you can change your default DNS settings and try using another one. You may use Google Public DNS, Open DNS, Yandex DNS, Comodo Secure DNS or any other and see. DNS Jumper & QuickSetDNS are free tools that will help you change your default DNS settings with a click.
If nothing helps, you may have to reset your browser or reinstall it and see if that works for you.