Your Connection Was Interrupted - A Network Change Was Detected - ERR_NETWORK_CHANGED
If you've received the "Your Connection Was Interrupted, a Network Change Was Detected, ERR_NETWORK_CHANGED" error, there are a few simple fixes for the problem.
Because this error can happen in all web browsers (Chrome, Edge, Firefox, and Internet Explorer) we're going to focus on the problems with Windows that causes these errors. It's unlikely the fault is with your browser.
1: Check Your Wired and Wireless Connection
One of the most common causes of this error is that your computer is setup for both Wi-Fi and wired and is switching between them, so we need to disable whichever setting you don't use.
Go to your Control Panel, Network & Internet, Network and Sharing Center, Change Adapter Settings. Here you will see a list of devices. If you see wired and wireless connections, right-click on the one you don't use and select Disable.
Should the error continue, you might consider that your network card is failing?
2: Flush Your DNS Cache and or TCP/IP
If you've recently changed network settings in any way, then it's a good idea to flush your DNS cache as well as reset your DNS Cache and TCP/IP. Open an elevated Command Prompt or PowerShell and type in the following lines. Each step is quick and requires a reboot. We'd try one at a time if you can. However, we don't see a problem trying all three at once.
ipconfig /flushdns netsh winsock reset netsh int ip reset