Error message when you try to log on to an FTP site that is running IIS 6.0: "Error: 530 User <UserName> cannot log in, home directory inaccessible"

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Article ID: 932448 - View products that this article applies to.
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Symptoms

You try to log on to an FTP site that is hosted on a server that is running Microsoft Windows Server 2003, the Active Directory directory service, and Microsoft Internet Information Services (IIS) 6.0. The FTP site is configured to use "Isolate users using Active Directory" mode. However, you cannot log on to the FTP site. Instead, you receive the following error message:
Error: 530 User UserName cannot log in, home directory inaccessible
This problem occurs only when a particular domain controller is offline or unavailable. At other times, you can successfully log on to the FTP site.

Cause

The File Transfer Protocol (FTP) service that is included in IIS 6.0 maintains a cache of the first domain controller with which it communicates. When that domain controller is offline or is unavailable, IIS 6.0 does not renegotiate a connection to another domain controller.

Workaround

To work around this problem, use the Iisreset.exe command to flush the cache and to reset the File Transfer Protocol (FTP) service and other IIS 6.0 services. To do this, click Start, click Run, type iisreset, and then click OK.

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

More information

For more information about FTP User Isolation in IIS 6.0, visit the following Microsoft Web site:
http://www.microsoft.com/technet/prodtechnol/WindowsServer2003/Library/IIS/b63de8ef-e3c5-456d-a8ca-7af4198819d4.mspx?mfr=true
For more information about the Iisreset.exe command in IIS 6.0, visit the following Microsoft Web site:
http://www.microsoft.com/technet/prodtechnol/WindowsServer2003/Library/IIS/95826e7a-bac4-4e1f-bcb6-c52d49c9d7f4.mspx?mfr=true

Properties

Article ID: 932448 - Last Review: June 21, 2014 - Revision: 2.0
Applies to
  • Microsoft Internet Information Services 6.0
  • Windows Server 2008 Datacenter without Hyper-V
  • Windows Server 2008 Enterprise without Hyper-V
  • Windows Server 2008 for Itanium-Based Systems
  • Windows Server 2008 Standard without Hyper-V
  • Windows Server 2008 Datacenter
  • Windows Server 2008 Enterprise
  • Windows Server 2008 Standard
  • Windows Web Server 2008
Keywords: 
kbprb kbtshoot kbexpertiseinter KB932448

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