If you want to know how to allow chrome to access the network in your firewall, you can follow the step given below:
1. Open Google Chrome.
2. Click Settings on the drop-down menu.
3. Click the Show advanced settings… option.
4. Click LAN settings.
5. Click Use a proxy server for your LAN.
6. Then click on OK to apply 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.