RESOLVED (3:05 PM): Amazon has verified that uploads to their service should be working again; users should be seeing improved performance with their uploads to Canvas. Instructure is continuing to monitor the situation, and they believe there are no lingering issues that affect Canvas functionality at this time.
UPDATE (1:40 PM): Though access is returning to normal, there is still an area of impaired functionality between Canvas and Amazon Web Services. The biggest area of impact right now is that uploads are not yet working. This includes student uploads to assignments, instructor grade uploads, and similar functions. You may continue to see issues with this, and other areas in Canvas, as Amazon works to fully restore all services.
UPDATE (1:15 PM): Access to UC Davis Canvas appears to be returning, but is still responding slowly for some users. We are still awaiting full resolution.
A problem with Amazon Web Services (AWS) has interrupted access to UC Davis Canvas. Instructure (which makes Canvas) continues to provide updates at