Thursday August 29, 2019

Issue Summary:

Due to an upstream provider removing an IP address from service, some customers were unable to upload files and connect to Slack. We requested customers flush their DNS cache in order to purge the IP address. Please reach out to feedback@slack.com if you’re having any trouble uploading files or connecting to Slack.

6:06 PM PST

We've discovered that an incorrect IP address for one of our servers was cached by some ISPs and customers' machines. We have received several confirmations that flushing DNS resolves the issue. Let us know at feedback@slack.com if that's not the case, and we'd be happy to have a look.

6:55 AM PST

Our team continue to investigate the issues user are having while loading or using Slack. We are very sorry for any disruption caused and appreciate you bearing with us.

6:25 AM PST

It has come to our attention that some users may be having trouble loading Slack or having some general issues with the app at this time. This is impacting our both desktop and mobile apps. We are investigating the issue and will be sure to update you just as soon as we know more. Thanks for your patience.

5:55 AM PST