AFNetworking and No Internet Connection scenario

Question

I use AFNetworking in my app for every request (like login, get data from url, etc).

Take this for example: an user click on the login button and there\

Answer 1

How about using Reachability?

You can check whether you have a plausible reason for trying a connection before you do it.

Looks like the Apple Sample Project for Reachability shows how to get an initial status.