One user, or a few users here and there affected Access to Office 365 on the web The amount of time you spend will depend on the type of Office 365 installation you have, and the root causes of your sign-in issues. Then we'll take you through a series of troubleshooting steps and configuration checks that are specific to your situation. This article will begin by asking you questions about your installation and the symptoms you're experiencing. Troubleshoot Skype for Business Online sign-in issues for admins
