On October 17, 2018, for a few minutes starting at 11:28 AM PT, some customers were unable to connect to Slack. In addition, between 11:28 AM PT and 12:52 PM PT, some users experienced issues with notifications being delayed or not being received, files not successfully uploading, and messages failing to send. Our investigations determined this to be caused by a networking issue with one of our cloud providers. Functionality was fully recovered by a selective restart of the servers responsible for those tasks.
10:17 AM PDT - Oct 18th・See in your timezone
Our team has successfully isolated the issue, and things should be back to normal again. Thanks for your patience!
1:22 PM PDT - Oct 17th・See in your timezone
We're still looking into the cause of notification, thread, and message issues some users are experiencing.
12:52 PM PDT - Oct 17th・See in your timezone
We've received reports that some folks are having difficulties with notifications, threads and editing messages. We're aware of the issue and are actively working towards a resolution. Sorry for the troubles!
12:22 PM PDT - Oct 17th・See in your timezone