On Saturday, February 2, 2013, from 5:00am to 9:00am, the campus network will be offline for scheduled work.
See: http://helpdesk.princeton.edu/outages/view.plx?ID=3998
This outage includes all OIT networks including the wireless network in the CS building.
The CS network will effectively be disconnected from the rest of the campus and the Internet during this time. However, if you are on the CS network (e.g., on a wired connection in the CS building), you will be able to reach other systems on the CS Network (even if they are at the remote data center).