When attempting to use ng new whateverApp the printout reaches the installing modules part and then simply stalls. The net connection seems to get blocked and it actually requires a router reboot.
This may be a problem with node itself, rather than this cli, but since it happens consistently, I'm posting it here.

I'm on osx (El Capitan)

ng --version gives this:

re-evaluating native module sources is not supported. If you are using the graceful-fs module, please update it to a more recent version.
Could not start watchman; falling back to NodeWatcher for file system events.
Visit http://ember-cli.com/user-guide/#watchman for more info.
angular-cli: 1.0.0-beta.6
node: 6.2.2
os: darwin x64