Not too sure about the HH3 but on the HH4 its [Advanced Settings]->[Broadband]->[Internet].
You should see something like the following:
Connection time: 0 days, 19:41:55But like I said it might be different for the HH3.
Data Transmitted/Received: 506.3 MB / 11.3 GB
Broadband username: [email protected]
Password: Not configured