First connect to AirOrangeGuest wireless network (enter your phone number, it will text back with a passcode)
Now you can use the phone number as a username and the passcode to connect a laptop to AirOrangeGuest.
Once connected to AirOrangeGuest, open a browser and type in the URL airorangehelp.syr.edu.
Follow the instruction for your device as outlined in the Connecting Answers Page
It's normal for the process to prompt for your netid and password a few times as each certificate is installed.
You will also need the username and password of the device if it is so configured.