e:\wwwroot_ionic>ionic start myproject
Creating Ionic app in folder e:\wwwroot_ionic\myproject based on tabs project
Downloading: https://github.com/driftyco/ionic-app-base/archive/master.zip
Error Initializing app: Error: connect ETIMEDOUT 204.13.251.16:443

 at Object.exports._errnoException (util.js:837:11)
at exports._exceptionWithHostPort (util.js:860:20)
at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1060:14)

Error: connect ETIMEDOUT 204.13.251.16:443

 at Object.exports._errnoException (util.js:837:11)
at exports._exceptionWithHostPort (util.js:860:20)
at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1060:14)

connect ETIMEDOUT 204.13.251.16:443 (CLI v1.6.4)

Your system information:

Cordova CLI: 5.3.1
Ionic CLI Version: 1.6.4
Ionic App Lib Version: 0.3.8
OS: null
Node Version: v4.0.0