Columbia problems from 2019-12-30 at 09:44 to 2020-05-31 at 16:37

On Dec. 30, 2019, 9:44 a.m., columbia.edu stopped responding normally and became unavailable to users.
After 5 months, at May 31, 2020, 4:37 p.m., It started behaving normally and we were able to reach it again.

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