"Access Denied" error, or user is repeatedly prompted for credentials when trying to connect to Office 365 by using a rich client application

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Article ID: 2630976 - View products that this article applies to.
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PROBLEM

When users try to access a Microsoft Office 365 resource from a rich client application such as Microsoft Outlook or Microsoft Lync, one of the following symptoms occurs:
  • Users are repeatedly prompted to enter their credentials.
  • Users receive the following error message:
    Access Denied

SOLUTION

To fix this problem, reset the user's password. To do this, follow these steps:
  1. Open a web browser, browse to the Office 365 portal (https://portal.microsoftonline.com), and then sign in by using the user's expired credentials.
  2. When you're prompted, enter a new Office 365 password for the user. Make sure that the password meets the criteria for Office 365.

REFERENCES

For information about related issues, see the following Microsoft Knowledge Base articles: 
  • 2637629 How to troubleshoot non-browser apps that can’t sign in to Office 365, Azure, or Windows Intune
  • 2461628 A federated user is repeatedly prompted for credentials during sign-in to Office 365, Azure, or Windows Intune  
Still need help? Go to the Office 365 Community website.

Properties

Article ID: 2630976 - Last Review: July 9, 2014 - Revision: 29.0
Applies to
  • Microsoft Office 365
  • Office 365 User and Domain Management
Keywords: 
o365 o365e o365p o365022013 o365m o365a KB2630976

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