Have you hired a co-op student to work on your site in the WCMS? Two sessions of Co-op student training will be offered May 2 and 3 (full) and May 4 and 5 from 9:00-12:00 in MC 2060 (this is the SEW099, Content Maintainers course).
What is happening? As part of the regular maintenance of IST services, updates will be applied to SharePoint servers. These updates will impact both mySharePoint.uwaterloo.ca and SharePoint.uwaterloo.ca services. The SQL instance also needs to be rebooted.