Need help signing in?

Note:  This article applies to Microsoft 365 operated by 21Vianet in China.

In this article

How do I sign in to the Skype for Business app?

You need a sign-in address and password from an organization that has a Skype for Business or Lync license. If you’re already using Skype for Business on your desktop, then you can sign in with the credentials from your work or school account. 

How do I reset my password?

If you forgot your password, or it doesn’t work anymore, contact your workplace technical support—typically the person who set up your Skype for Business account for you.

What’s the format of my sign-in address and user name?

Your sign-in address looks like this:

You may be asked for both a user name and a sign-in address. The user name is what you use to sign in to your organization’s network, either or domain\username.

Do I need to enter proxy settings?

If you’re behind an authenticated proxy, you’ll need to provide proxy authentication information, as follows.

  • From the my info screen, tap More (…), tap settings, and then tap proxy setting and enter your proxy settings.

When do I need to manually specify an auto-discovery server?

If you can’t sign in, you might need to manually specify the auto-discovery server. For more information contact your technical support team.

How long do I stay signed in on Lync app for Windows Phone?

Once you’re signed in you’ll remain signed in as long as there is connectivity. If you have connectivity but haven’t used the application for 10 days, you’ll be signed out.

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