Microsoft KB Archive/184833

= SBS Autodial and Inactivity Timers Function Incorrectly =

Article ID: 184833

Article Last Modified on 10/30/2006

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APPLIES TO


 * Microsoft BackOffice Small Business Server 4.0
 * Microsoft BackOffice Small Business Server 4.0a
 * Microsoft BackOffice Small Business Server 4.5

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This article was previously published under Q184833



SYMPTOMS
Your Small Business Server (SBS) computer may experience one or more of the following:
 * Your dial-up connection to the Internet may not disconnect after the specified period of inactivity.
 * Proxy Server is dialing your Internet connection at times when no one is using the server.



CAUSE
There are two causes for the above issues:


 * SBS, by default, sends announcements for older clients to have the ability to browse.
 * Proxy Server has Active Caching enabled.

NOTE: In SBS 4.5, Active Caching is not enabled by default.



RESOLUTION
To resolve the above issues, perform one or both of the following procedures:

Disable the LMAnnounce Parameter

 * 1) Click Start, point to Settings, and then click Control Panel.
 * 2) Double-click Network, click the Services tab, and then click Server.
 * 3) Click Properties, and then click to clear the Make Browser Broadcasts to LAN Manager 2.x Clients check box.
 * 4) Click OK, click Close, and then restart your computer when prompted.

Disable Active Caching in Proxy Server

 * 1) Click Start, point to Programs, and then point to Proxy Server.
 * 2) Click Internet Service Manager, and then double-click the Web Proxy service.
 * 3) Click the Caching tab, and then click to clear the Enable Active Caching check box.
 * 4) Click OK, and close Internet Service Manager.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.



MORE INFORMATION
A network monitor trace will show packets similar to the following:   For the LMAnnounce, you may see a packet similar to the following:

     SMB C transact, File = \MAILSLOT\LANMAN

where the destination IP address will be a subnet broadcast address.   For the active caching in Proxy Server, you may see a packet similar to the following:

     HTTP: GET Request (from client using port 2969)

NOTE: These packets may be around midnight. Proxy Server uses an algorithm to determine which Internet sites are the most popular and actively caches these sites at a time when normal traffic is low. 

For information about how to troubleshoot Proxy Server, please see the following article in the Microsoft Knowledge Base:

181407 Troubleshooting Proxy Server RAS Autodial and Autodisconnect

Additional query words: smallbiz sbs autodial proxy timers caching RAS

Keywords: kbbug kbpending KB184833

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