We are still experiencing problems with Blackboard Collaborate service. Attempt to fix this software issue requires taking Blackboard system offline. For importance of this action, we are scheduling this operation outside our standard maintenance window for Friday, June 21 at 7:30 a.m. Expected downtime is 30 minutes. If you intend to use Blackboard around this time, please make sure that you close your session and log out of Blackboard before 7:30 to prevent possible loss of data..
Check this blog for updates related to this maintenance action.
Thank you for your understanding.