Microsoft KB Archive Search

Notice: This website is an unofficial Microsoft Knowledge Base (hereinafter KB) archive and is intended to provide a reliable access to deleted content from Microsoft KB. All KB articles are owned by Microsoft Corporation. Read full disclaimer for more details.

  1. Home
  2. Error message when you send a large file by using Office Communicator 2007 R2 and a Office Communications Server server that has the Forefront Security for Office Communications Server component installed

Error message when you send a large file by using Office Communicator 2007 R2 and a Office Communications Server server that has the Forefront Security for Office Communications Server component installed

View products that this article applies to.

Symptoms

You send a large file by using Microsoft Office Communicator 2007 R2 and a Microsoft Office Communications Server (OCS) server that has the Microsoft Forefront Security for Office Communications Server (FSOCS) component installed. In this situation, you may receive the following error message after one minute:
 
"Cannot send <filename> to <username>".


 
However, if you keep the file transfer instant messaging (IM) session open, the recipient can eventually receive the large file from you.

↑ Back to the top

Cause

When a FSOCS component is installed on an OCS server, file transfers are routed to the OCS server for a virus scan. When the file transfer starts, the Office Communicator client sends a Session Initiation Protocol (SIP) messages to the OCS server, but it ignores the provisional responses that are received from FSOCS. Therefore, a timeout occurs after about 60 seconds and then you receive an error message. However, it does not stop the actual file transfer. The file can still be sent to the recipient successfully.

↑ Back to the top

Resolution

To resolve this problem, install the following update rollup:
2028888 Description of the cumulative update package for Communicator 2007 R2: July 2010


↑ Back to the top

Status

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

↑ Back to the top

Keywords: kbqfe, kbfix, kbsurveynew, kbhotfixrollup, kbexpertiseinter, kb

↑ Back to the top

Article Info
Article ID : 2250890
Revision : 2
Created on : 9/10/2018
Published on : 9/10/2018
Exists online : False
Views : 363