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Outlook Web Access Loading... in mixed Exchange 2003 and 2007 environment

There are plenty of web sites that can help you resolve now already well known problem in OWA when your browser does not display any pictures in it and hangs with Loading... text.

Use Google to find other resolution if it is not the one described below.

You setup Exchange 2007 into the existing Exchange 2003 environment. You reroute Internet users to use your new Client Access Server (CAS) for OWA. CAS server includes a mechanism that redirects user to the correct Exchange server, being that Exchange 2003 or 2007. It depends on which server the mailbox resides.

In the case that you changed Authentication type on your CAS server such that users don't need to provide domain\username but only username, your Exchange 2003 users could get following screen in their browser...

owa The resolution to the problem is in the authentication type on your CAS server. Not only that you need to change authentication type on your /Exchange folder but also on your /owa and /Exchweb folders.

Authentication

I would also recommend that you enter your domain name on existing /Exchange and /Exchweb Exchange 2003 web folders in IIS if you chose to use only username for login.

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Comments

  1. AnonymousSeptember 18, 2008 at 9:42 AM

    I am also facing the same problem on Exchange 2003. it will be great if you can tell me the solution for the same.
    Thanks
    Saurabh

    ReplyDelete
  2. AnonymousSeptember 23, 2008 at 3:17 AM

    To solve this problem I fix my IIS configuration. On Exchange virtual directory - Security Tab, enable Basic Authentication and disable Anonymous Access. And ExchWeb Virtual Directory, enable Anonymous Access and disable Basic Authentication.

    Good Luck!!!
    Paulo Sayeg

    ReplyDelete

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