Terminal Server and connected Terminal Services clients pause when a Terminal Services client logs on or logs off (324446)

This article was previously published under Q324446

SYMPTOMS

When a Terminal Services client logs on or logs off (either in a session or on the console of the Terminal server), the Windows 2000-based Terminal server together with the connected Terminal Services client computers may stop responding or may pause for several seconds. Users may also experience one or more of the follow symptoms:

When a user types in a document, characters do not appear on the screen until this pause has ended.
Keyboard input and mouse input are queued, but they are not processed until this pause has ended.
Live performance monitoring (Perfmon) graphs have missing data points during this pause.
All running programs appear to stop responding, or"hang," during this pause.
When Spooler is under a load from a large number of users, a high CPU usage is displayed for it.

CAUSE

This problem may occur if there is a contention among server resources. The contention causes a delay in processing that appears as a pause or as unresponsiveness.

RESOLUTION

Hotfix Information

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/default.aspx?scid=fh;[LN];CNTACTMS

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites

Windows 2000 Service Pack 3 (SP3) or later is required to install this hotfix. For additional information about how to obtain the latest Windows 2000 service pack, click the following article number to view the article in the Microsoft Knowledge Base:

260910 How to obtain the latest Windows 2000 service pack

Restart Requirement

You must restart your computer after you apply this hotfix.

File Information

The English version of this hotfix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

   Date         Time   Version            Size    File name
   --------------------------------------------------------------
   02-Aug-2004  18:00  5.0.2195.6920     126,736  Adsldp.dll       
   02-Aug-2004  18:00  5.0.2195.6960     132,880  Adsldpc.dll      
   02-Aug-2004  18:00  5.0.2195.6896      63,760  Adsmsext.dll     
   02-Aug-2004  18:00  5.0.2195.6928     381,712  Advapi32.dll     
   24-Mar-2004  02:17  5.0.2195.6824      42,256  Basesrv.dll      
   02-Aug-2004  18:00  5.0.2195.6866      69,904  Browser.dll      
   16-Jan-2004  00:18  5.0.2195.6891      35,632  Classpnp.sys
   21-Sep-2003  00:45  5.0.2195.6824     236,304  Cmd.exe          
   24-Feb-2004  05:10  5.0.2195.6901      30,864  Disk.sys
   02-Aug-2004  18:00  5.0.2195.6920     136,464  Dnsapi.dll       
   02-Aug-2004  18:00  5.0.2195.6876      92,432  Dnsrslvr.dll     
   02-Aug-2004  18:00  5.0.2195.6920      47,376  Eventlog.dll     
   15-Apr-2004  22:00  5.0.3900.6920     242,448  Explorer.exe     
   02-Aug-2004  18:00  0.2.0.1           138,000  Faxui.dll        
   19-Jun-2003  20:05  5.0.2195.6660     233,744  Gdi32.dll        
   02-Aug-2004  18:00  5.0.2195.6939     148,752  Kdcsvc.dll       
   03-May-2004  23:59  5.0.2195.6922     206,096  Kerberos.dll     
   24-Mar-2004  02:17  5.0.2195.6897     742,160  Kernel32.dll     
   21-Sep-2003  00:32  5.0.2195.6824      71,888  Ksecdd.sys
   02-Aug-2004  18:00  5.0.2195.6960     256,784  Localspl.dll     
   11-Jun-2004  22:18  5.0.2195.6940     512,784  Lsasrv.dll       
   11-Jun-2004  22:18  5.0.2195.6940      33,552  Lsass.exe        
   10-Feb-2004  19:47  5.0.2195.6897      30,160  Mountmgr.sys
   24-Mar-2004  02:17  5.0.2195.6824      54,544  Mpr.dll          
   27-Jul-2004  22:03  5.0.2195.6961     409,360  Mrxsmb.sys
   02-Aug-2004  18:00  5.0.2195.6958     335,120  Msgina.dll       
   05-May-2004  01:05  5.0.2195.6926     114,960  Msv1_0.dll       
   02-Aug-2004  18:00  5.0.2195.6958     309,008  Netapi32.dll     
   02-Aug-2004  18:00  5.0.2195.6921     361,744  Netlogon.dll     
   02-Aug-2004  18:00  5.0.2195.6961     933,648  Ntdsa.dll        
   23-Jul-2004  19:17  5.0.2195.6960   1,704,128  Ntkrnlmp.exe     
   23-Jul-2004  19:17  5.0.2195.6960   1,703,744  Ntkrnlpa.exe     
   23-Jul-2004  19:17  5.0.2195.6960   1,725,504  Ntkrpamp.exe     
   23-Jul-2004  19:17  5.0.2195.6960   1,680,832  Ntoskrnl.exe     
   19-Jun-2003  20:05  5.0.2195.6702      66,320  Ntprint.dll      
   02-Aug-2004  18:00  5.0.2195.6960     955,152  Ole32.dll        
   02-Aug-2004  18:00  5.0.2195.6868     381,712  Printui.dll      
   27-Jul-2004  22:03  5.0.2195.6961     169,968  Rdbss.sys
   24-Mar-2004  02:17  5.0.2195.6892      90,264  Rdpwd.sys
   02-Aug-2004  18:00  5.0.2195.6958     435,984  Rpcrt4.dll       
   02-Aug-2004  18:00  5.0.2195.6935     212,240  Rpcss.dll        
   02-Aug-2004  18:00  5.0.2195.6944     392,976  Samsrv.dll       
   02-Aug-2004  18:00  5.0.2195.6939     114,448  Scecli.dll       
   02-Aug-2004  18:00  5.0.2195.6939     261,392  Scesrv.dll       
   02-Aug-2004  18:00  5.0.3900.6960   2,358,544  Shell32.dll      
   04-Jun-2004  23:13  5.0.2195.6935   5,887,488  Sp3res.dll       
   02-Aug-2004  18:00  5.0.2195.6938      80,144  Spoolss.dll      
   02-Aug-2004  18:00  5.0.2195.6824      12,560  Usbmon.dll       
   24-Mar-2004  02:17  5.0.2195.6897     403,216  User32.dll       
   05-Aug-2003  22:14  5.0.2195.6794     385,808  Userenv.dll      
   02-Aug-2004  18:00  5.0.2195.6920      48,912  W32time.dll      
   05-Apr-2004  17:46  5.0.2195.6920      57,104  W32tm.exe        
   14-Jul-2004  01:52  5.0.2195.6960   1,631,696  Win32k.sys
   02-Aug-2004  18:00  5.0.2195.6924      88,336  Win32spl.dll     
   11-Mar-2004  02:37  5.0.2195.6898     181,520  Winlogon.exe     
   02-Aug-2004  18:00  5.0.2195.6825     114,960  Winspool.drv
   02-Aug-2004  18:00  5.0.2195.6958     244,496  Winsrv.dll       
   02-Aug-2004  18:00  5.0.2195.6920     127,248  Wldap32.dll      
   02-Aug-2004  18:00  5.0.2195.6824      57,104  Wlnotify.dll     
   24-Mar-2004  02:17  5.0.2195.6897     742,160  Kernel32.dll     
   14-Jul-2004  01:52  5.0.2195.6960   1,631,696  Win32k.sys
   02-Aug-2004  18:00  5.0.2195.6958     244,496  Winsrv.dll       
   02-Aug-2004  18:15                     25,520  Kb324446.cat

STATUS

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

MORE INFORMATION

To install the hotfix that is described in this article, the Terminal server must be running Windows 2000 Service Pack 3 (SP3) or later. This fix is also scheduled to be included in Windows 2000 Service Pack 5 (SP5). After you install the hotfix and restart the computer, you must turn on the Power Protect write cache option for each hard disk that has write caching enabled and that has its write cache protected against accidental loss of power. To configure the Power Protect option, use the Dskcache.exe tool.

For additional information about how to obtain the Dskcache.exe tool and how to use it to configure the Power Protect write cache option, click the following article number to view the article in the Microsoft Knowledge Base:

811392 Obtain the Dskcache.exe tool to configure the"Power Protected" write cache option

When you run Dskcache.exe without any parameters, the current write cache settings for all hard disks are displayed. For each hard disk that is currently installed on your computer, the following information is displayed:

Disk device :

\\?\\ <SCSI DEVICE ID>

Current Settings :

Write Cache is [ enabled | disabled ]
Power Protect is [ enabled | disabled ]

To turn on the Power Protect option on a hard disk, use the p command-line switch.

For example, to turn on the Power Protect option on drive C, type the following line at the command prompt, and then press ENTER:

dskcache +p c:

The following information is displayed for drive C:

Disk device :

\\?\\ <SCSI DEVICE ID >

Current Settings :

Write Cache is enabled
Power Protect is disabled

New Settings :

Write Cache is enabled
Power Protect is enabled

Note You can turn on the Power Protect write cache option only for disks that are currently present on your computer. By default, the Power Protect option is turned off. As a result, this option is turned off for any hard disks that are added to the computer after you apply this setting. When you add additional hard disks, you must turn on the Power Protect option for those disks if you want the setting to apply to those disks.

You must also configure the following registry subkeys on the Terminal server and on all file servers:

In the HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Lanmanserver\Parameters subkey, configure the following entries:
- Name: MaxWorkItems
  Data Type: REG_DWORD
  Value data: 12000 (decimal)
- Name: MaxMpxCt
  Data Type: REG_DWORD
  Value data: 2048 (decimal)
- Name: MaxRawWorkItems
  Data Type: REG_DWORD
  Value data: 512 (decimal)
- Name: MaxFreeConnections
  Data Type: REG_DWORD
  Value data: 100 (decimal)
- Name: MinFreeConnections
  Data Type: REG_DWORD
  Value data: 32 (decimal)
In the HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Lanmanworkstation\Parameters subkey, configure the following entry:
- Name: MaxCmds
  Data Type: REG_DWORD
  Value data: 2048 (decimal)
By default, your registry does not have a Configuration Manager subkey. To create the key, locate and then right-click the following subkey:

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager

Point to New, and then click Key. Type Configuration Manager, and then press ENTER.

In the new HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager\Configuration Manager subkey, configure the following entry:
- Name: RegistryLazyFlushInterval
  Data Type: REG_DWORD
  Value data: 60 (decimal)

For additional information about how hotfix packages are named, click the following article number to view the article in the Microsoft Knowledge Base:

816915 New naming schema for Microsoft Windows software update packages

The information in this article applies to:

Microsoft Windows 2000 Advanced Server SP3
Microsoft Windows 2000 Server SP3
Microsoft Windows 2000 Advanced Server SP4
Microsoft Windows 2000 Server SP4

Last Reviewed:	11/6/2004 (11.0)
Keywords:	kbQFE kbWin2000preSP5fix kbbug kbfix KB324446 kbAudEndUser kbAudITPRO