...
3. If you are connected to the SU-Guest wifi network currently, again in System Preferences, go to Network, select Advanced, and un-check Auto-Join for the SU-Guest and SU-Secure network. If you are not connected to SU-Guest, please go to Step 4.
4. Click on the Wifi symbol by your clock in the top right corner of your screen. From the list of available networks select SU-Connect and wait for your computer to successfully connect to the SU-Connect network.
...