Moodle's authentication system will be down for maintenance from 12AM - 8AM on Tuesday, April 15th, as IT services is maintaining the main campus data storage systems. See the full announcement from IT services:
On Tuesday, April 15, from 12am to 8am, Information Technology Services will be performing maintenance on the main campus data storage systems. As a result, most of the major University wide applications and services will be unavailable, including Blackboard, Banner, and the PODs. BMail will be working, as well as the main campus web servers and Library services that don't require authentication, but everything else will be down. If you are having trouble connecting to a system that is not listed, please try again after the maintenance window before calling the Help Desk. When the work has been completed, a notice will be posted on the ITS System Status Dashboard at http://itstatus.binghamton.edu.
The Moodle server will not experience downtime, but you may not be able to log in during this period.