https://superuser.com/questions/747735/regularly-getting-err-network-changed-errors-in-chrome

Possible Solutions

Here are some approaches to solve the problem that I found researching the entire day:

1. Deactivate all network adapters but leave the one you use enabled.
2. Open the CMD and enter ipconfig /flushdns to clear all cached DNS settings.
3. Clear the entire cache of Chrome.
4. Of course, update your network card driver (or downgrade if the latest one causes problems).
5. Uninstall your network driver and let Windows reinstall it.
6. Try to assign the DNS server addresses yourself, see settings under Internet Protocol v4 of your network card.
7. Try to reset TCP/IP if you have Internet connection issues, see Microsoft instructions.
8. Try disabling the Bluetooth adapter.

Wireless Card settings. Go to your Device Manager, open the properties of your wifi card and:

1. go to the tab Power Management. De-select "Allow the computer to turn off this device to save power".
2. go to tab "Advanced" and select under "Wireless Mode" instead of 802.11a/b/g the slower one 802.11b. Source. Check all available settings on this Intel page.
3. go to tab "Advanced" and choose "disabled" under "U-APSD support". Also try to set "Transmit Power" to Medium, than to Highest again to have Power Save Polling (PSP) deactivated.

4. go to tab "Advanced" and choose "disabled" for "Packet Coalescing".

5. Try to change many more options in the wireless adapter settings according this intel post. E.g. HT Mode disabled, 802.11n Channel Width at 20 MHz Only, Roaming Aggressiveness to lowest. However, as a user stated "None of this works."

6. Go to Power Options, Wireless Adapter Settings, and choose "Maximum Performance".

The usual stuff:

1. Update Chrome to the latest version, do all Windows Updates.
2. Remove your latest installed Chrome extensions.
3. Check your router. Try to find log files to nail down the issue.

Please comment, which solution worked for you.

Good luck!