Columbia problems from 2019-06-11 00:07 to 04:39

On June 11, 2019, 12:07 a.m., columbia.edu stopped responding normally and became unavailable to users.
After 4 hours, 32 minutes, at June 11, 2019, 4:39 a.m., It started behaving normally and we were able to reach it again.

During the downtime, no users reported problems with reaching columbia.edu