Can't Start VS Code without Internet connection

Question

dns.js:246 this._handle = new ChannelWrap();
^ Error: EFILE at new Resolver (dns.js:246:20) at dns.js:377:25 at dns.js:431:3 at NativeModule.compile (bootstrap_node.js:606:7) at NativeModule.require (bootstrap_node.js:550:18) at net.js:45:13 at net.js:1730:3 at NativeModule.compile (bootstrap_node.js:606:7) at NativeModule.require (bootstrap_node.js:550:18) at internal/child_process.js:6:13

Am using 3 plugin 

1. Intellisense
2. Material Icon
3. Omnisharp

Am search many result but could't find answer 

 

 How to work with Offline in VS Code