Microsoft have reported an issue with Microsoft Teams that is preventing some users from accessing the service. Please see the following service status notice from Microsoft.
Status:
Service degradation
User impact:
Users may be unable to access Microsoft Teams.
Latest message:
Title: Microsoft Teams access issue User Impact: Users may be unable to access Microsoft Teams. More info: Users may see the error message ‘D’oh! Something went wrong… Try again’. This is affecting both the Microsoft Teams web and desktop clients. Current status: We’re reviewing service logs to isolate the source of the issue and determine the next troubleshooting steps. Scope of impact: Impact is specific to a subset of users who are served through the affected infrastructure. Next update by: Monday, October 29, 2018, at 11:00 AM UTC