Troubleshoot sign-in to Office 365

Office 365 for enterprises comes with service health and troubleshooting tools for users and admins.

If you’re having trouble signing in to Office 365

If you can’t sign in to the Office 365 portal (https://login.microsoftonline.com), you may be able to sign in to the individual services directly.

Service	Type this URL into the address bar of your web browser
Email	https://mail.office365.com
SharePoint team sites	https://<domain>.sharepoint.com/TeamSite/SitePages/<pagename>.aspx
Public website	Public URL: https://<domain>.sharepoint.com Edit mode: https://<domain>.sharepoint.com You can also apply a custom domain, like https://www.contoso.com

View the status of your services on the Service health page in the Office 365 portal. (https://portal.microsoftonline.com/admin).
- Subscribe to the Service health RSS feed from the Service health page.
- Check service status on the Office 365 Community.
If the Service health page is unavailable, sign in to the Emergency Broadcast System to view service status. You’ll need to sign in with your Office 365 user ID.
- Check the Release Notes for Office 365 for enterprises.
Contact support:
- For technical issues, see Contact Support for a technical issue.
- For billing or subscription issues, see Contact Support for a billing or subscription issue.

Try these diagnostic tools:
- Troubleshooting tool for Office 365. This tool provides troubleshooting help for admins and users.
- Diagnostics and tools for Office 365 for enterprises. A directory of tools available to admins.

Sign in and ask questions in the Office 365 Community.
If the Office 365 Portal (https://portal.microsoftonline.com/admin) is available, submit a service request.

In the Office 365 Portal, go to Admin > Office 365 > Support > Service requests, and submit a service request.