Microsoft KB Archive/184187

= XADM: Unable to Connect to Server, Licenses Still Available =

Article ID: 184187

Article Last Modified on 10/8/2003

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APPLIES TO


 * Microsoft Exchange Server 5.0 Standard Edition
 * Microsoft Exchange Server 5.5 Standard Edition

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This article was previously published under Q184187



SYMPTOMS
When you attempt to connect to a Microsoft Exchange Server computer, you may receive an error message indicating that there are no more client access licenses available. This problem occurs even though the number of users connected to the server does not exceed the number of client access licenses that have been added on the server.



CAUSE
This problem can occur when the "Not for Resale" (NFR) version of Microsoft Windows NT Server or the version of Windows NT Server that is included with the Microsoft Developer Network (MSDN) is installed on the computer running Exchange Server. The NFR version of Windows NT Server is limited to five users and the version of Windows NT Server that is included with MSDN is limited to ten users.



WORKAROUND
To work around this problem, install the retail version of Windows NT Server. For information about doing so, please see the following article in the Microsoft Knowledge Base:

142391 Cannot Upgrade NFR or MSDN Windows NT 4.0 to Retail



MORE INFORMATION
To determine if you are running the NFR or MSDN version of Windows NT Server, double-click Licensing in Control Panel. If you are running the NFR or MSDN version of Windows NT Server, the following message is displayed:

Not available in NFR (Not for Resale)/MSDN Edition of Windows NT

Server.

Additional query words: cal

Keywords: kbprb KB184187

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