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Solution to the Outlook Web Access user login issues

Outlook Web Access User Login Issues

Sometimes, when you try to login to your Outlook Web Access, you might get error message saying Unauthorized: Logon Failed, Access is denied or Page Cannot Be Displayed or Login failed or cancelled. All these messages are a part of the Outlook Web Access user login issues and may arise due to use of incorrect authentication method or in case of lack of correct permissions. These issues can be fixed just be with the help of correct authentication methods and correct permissions. In this article, we are providing the step-by-step solution to the Outlook Web Access (OWA) user login issues. Follow the steps as exactly described below if you are also facing the similar problems.

Solution to the Outlook Web Access user login issues

The login issues of OWA can take other forms also. You might face this problem with a particular browser or you might be able to login to OWA but are repeatedly prompted for the credentials. It may also happen that the Outlook Web Access page does not load after providing the correct credentials. Well, all such kind of issues related to OWA can be fixed by taking the right corrective measures. The measure that you can take to fix the Outlook Web Access user login issues is explained in detail below.

  1. Alter the authentication methods for Exchange virtual directory and Public virtual directory in Exchange System Manager. The steps for the same are given below:
  • Go to Start > Programs > Microsoft Exchange > System Manager.
  • In the next step, go to Servers > Server Name > Protocols > HTTP > Exchange Virtual Server.
  • Now, under Exchange Virtual Server, right-click on Exchange and select Properties.
  • Click on the Access tab and select Authentication.
  • Select the Basic authentication check box (if not selected already).
  • In the default domain box, type the network basic input/ output system (NetBIOS) name of your domain, or type a backslash, if not already there.
  • Next, click two times on ‘Ok’ to close the property windows.
  • Right-click the Public virtual directory and select Properties.
  • Here again, click on the Access tab and select Authentication.
  • Select the Basic authentication check box and in the default domain box, type the NetBIOS name or a backslash.
  • Click twice on ‘Ok’ and quit Exchange System Manager.
  1. Change the authentication method for the Exchweb virtual directory in Microsoft Internet Information Services (IIS) by following these steps:
  • Go to Start > Programs > Administrative Tools > Internet Services Manager.
  • Expand Default Web Site, right-click on Exchweb, and then click Properties.
  • Go to the Directory Security tab and click Edit under Anonymous access and authentication control.
  • Select the Basic Authentication and Integrated Windows Authentication check box and then check the Anonymous access check box (Microsoft Windows 2000 Server IIS 5) or Enable anonymous access check box (in case of Microsoft Windows Server 2003 IIS 6).
  • Click ‘Ok’ two times.
  • Right-click on Default Web Site, click on Stop and then on Start.
  1. Now, grant the Authenticated Users group at least the Read and Execute, Read and List Folder Contents permissions on the suitable Exchange and Microsoft Windows directories. The correct permissions can be assigned by following the steps as given below:
  • In Windows Explorer, locate and right-click the Exchsrvr\Exchweb folder and select Properties.
  • In the Properties window, click on the Security tab and make sure that the Authenticated Users group has the following permissions: Read and Execute, List Folder Contents and Read
  • Also make sure that the system account has the Full Control permission on the Exchweb directory.
  • Repeat these steps for the following directories: Winnt\System32, Winnt\System32\Inetsrv, Winnt\System32\Wbem, Exchsrvr\Bin and Exchsrvr\RES.

Important Note:

  • In case Exchange 2003 is installed on a computer that is running Microsoft Windows Server 2003, one may have to enter the username in the format of domain\username, even if a backslash is entered as the default domain.
  • One must use a backslash as the default domain when Exchange 2003 is installed on a computer running Windows Server 2003 and forms-based authentication is enabled on it.