We've reverted a code change released at 9:23am PST that caused login requests to get very slow and have observed that teams are once again able to login. The change that was reverted introduced a dependency on our search infrastructure at login which was unnecessary and has now been removed.
We continuously monitor the status of slack.com and all its related services. If there are any interruptions in service, a note will be posted here. We will also post notices of scheduled downtime on this page.
Slack is a distributed platform and during any given incident it is rare for all Slack teams to be affected. For this reason, we report our uptime as an average derived from the number of affected users.
If you are experiencing problems connecting to Slack and do not see a notice posted, please email firstname.lastname@example.org. Follow us on Twitter for status updates.