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

Applies to: Windows Server 2008 Datacenter without Hyper-VWindows Server 2008 Enterprise without Hyper-VWindows Server 2008 for Itanium-Based Systems

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: For more information about the Iisreset.exe command in IIS 6.0, visit the following Microsoft Web site: