FTP logs show a 550 error message when you connect over a UNC share (307788)
The information in this article applies to:
- Microsoft Internet Information Services 5.0
- Microsoft Internet Information Services version 6.0
This article was previously published under Q307788 SYMPTOMS When you use a server that is running Internet Information
Services (IIS), that has a virtual directory, and that connects remotely over a
Universal Naming Convention (UNC) share, you may receive a 550 error message in
the File Transfer Protocol (FTP) log, and the event log may show event ID 2009
with a source of Srv. This behavior occurs most often when antivirus software is
running on the server. CAUSE The network server process provides remote procedure call
(RPC) support and file, print, and named pipe sharing. When IIS connects to a
remote server, it uses the server message block (SMB) protocol and connects to
the server service that is running on that computer. Another process that is
running on the computer may also have open file handles for the files that are
being transferred to the remote server. When the total number of open file
handles reaches 2048, the server process returns an error to the connecting IIS
FTP service. STATUS This behavior is by design.
| Modification Type: | Minor | Last Reviewed: | 3/14/2005 |
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| Keywords: | kbprb KB307788 |
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