Connecting to the Wifi
Late in 2016, SSC Leichhardt began using a new authentication process.
Step 1 - Connect the 'DETNSW' named wifi connection using your user.name@detnsw where your username is the first bit in your school email.
Step 2 - Make sure you have 'proxy auto discovery' turned on (see below).
Proxy Auto Discovery
Once you have configured this you will not have to change any settings between home and school.