If you want to know change allow chrome to access the network in your firewall, you can follow the step given below:
1. From the taskbar, hidden menu users may begin it.
2. Select the Avast Protection option.
3. Press the Exclusions option from the left pane.
4. Press on the ADD button to add the URL.
5. The Press OK to save the changes.
Hopefully above steps will help you to fix the issue if not you can also follow our blog to see more on how to allow chrome to access the network.