Question

Allow chrome to access the network in your firewall or antivirus settings. if it is already listed as a program allowed to access the network, try removing it from the list and adding it again.

Answer 1

First thing you should do in order to restrict some program (in this case Chrome) you should turn the Firewall ON.
1. Control Panel -> Security Center -> Firewall -> ON(Recommended)
Firewall restricts communication between the computer and the Internet, so we need to adjust settings for the program Chrome that require an open connection to the Internet. 
2.Windows Firewall dialog box ->  Exceptions tab.-> Add Program -> Select Chrome from the list