RPC/TCP Connection Attempt Made Only to First Address

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This article was previously published under Q181799

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SYMPTOMS

In Windows NT 4.0 and prior versions, when an RPC connection is attempted using protocol binding sequence ncacn_ip_tcp, if the DNS returns a list of IP addresses for the target computer, the connection attempt will only be made to the first IP address in the list. If that connection attempt fails, the RPC connect will fail.

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CAUSE

RPC only attempts to connect to the first IP address in the list returned by the Windows Sockets gethostbyname() call.

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RESOLUTION

To resolve this problem, obtain the latest service pack for Windows NT 4.0 or Windows NT Server 4.0, Terminal Server Edition. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

152734 (http://support.microsoft.com/kb/152734/EN-US/ ) How to Obtain the Latest Windows NT 4.0 Service Pack

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STATUS

Microsoft has confirmed that this is a problem in Windows NT 4.0 and Windows NT Server 4.0, Terminal Server Edition. This problem was first corrected in Windows NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition Service Pack 4.

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