Problems Authenticating to Exchange 2000 after 2003 serve SP1

Discussion in 'Active Directory' started by Mike, May 4, 2005.

  1. Mike

    Mike Guest

    I just service packed all my 2003 DCs to SP1. This week I am having problems
    with my end users loggin into Exchange 2000 via Outlook 2003. They go off
    line and when they try to get back on the are prompted to enter in thier
    password to authenticat to 1 of the DCs, then another login propmt goes up to
    authenticate to another DC and so on like an endless loop. The only way they
    can get back on is to close out the application and re-launch it, check off
    the work offline option and then they onle get 1 login prompt and then they
    are connected. Does anyone have anyt ideas as to why this is happening and
    how to fix the issue? Any input would be greately appreciated. Thanks.
    Mike, May 4, 2005
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  2. Mike

    Guest Guest

    Check out this new KB article about network connectivity issues after

    This Alert is to make you aware of a new Microsoft Knowledge Base

    Article that has been published.

    Microsoft Knowledge Base Article 898060 outlines a very specific and

    limited situation where disruptions in network connectivity may be

    experienced after the installation of either security update MS05-019 or

    Microsoft Windows Server 2003 Service Pack 1 (SP1).

    Specifically, the information in this article primarily applies to WAN

    and LAN configurations and scenarios where routers and data-link level

    protocols that have different Maximum Transmission Units (MTUs) are used

    across the network.

    In these situations, any one or more of the following symptoms may


    - Inability to connect to terminal servers or to file share access.

    - Failure of domain controller replication across WAN links.

    - Microsoft Exchange servers cannot connect to domain controllers.

    The Knowledge Base Article provides information about a hotfix which is

    now available to address these issues.

    The Knowledge Base Article can be found here:
    Guest, May 4, 2005
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