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Comments for event ID 21 currently in the processing queue.

Note: We have not reviewed this information yet so it is unfiltered, exactly how it was submitted by our contributors.

Event ID: 21
Event Source: ati2mpad
Event Type: -
Event Description: -
Comment: This Error has been seen with a HP server, and it occurs when the Service Pack 6a Security Rollup is applied (on a Windows NT 40).

HP has verified that this is a problem, and is working on a solution.

Until then I can see 3 solutions:
1: uninstall the security rollup
2: start in VGA mode
3: uninstall the driver and use the standard NT40 VGA driver

Index: 1427
Event ID: 21
Event Source: SimpTcp
Event Type: Error
Event Description: The description for Event ID ( 21 ) in Source ( SimpTcp ) cannot be found. The local computer may not have the necessary registry information or message DLL files to display messages from a remote computer. The following information is part of the event: The event log file is corrupt..


Data: Bytes
0000:   06  00  00  00  

Comment: Running Win2k Pro on three machines networked My small network is flying fast All three have phome modems Out here in Pahrump NV there is no other choice for ISP at this time. Dialup on all three is as good as it gets for a 28.8 Kbps the phone lines out here won't even handel 56K.
So no hints at all except for the error on boot. Services is set for Automaic for "simple TCP"  & "Tcp/IP Netbios Helper".
Event ID: 21
Event Source: VDS
Event Type: Error
Event Description: The provider failed to unregister for Pnp notifications on the disk. Disk: \\\scsi#disk&ven_adaptec&prod_volume_array&rev_v1.0#6&14f225c9&0&400#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}

For more information see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
Comment: No idea
Event ID: 21
Event Source: Wcmbus2k
Event Type: Error
Event Description: Win2k globetrotter gprs card + software Dell C640 sp4
when dialling up error 777 - eventviewer states id21 wcmbus2k
HDLCWrite: write packet failed - STATUS-TIMEOUT
Comment: have tried multiple uninstall / re-installs reboots diff card sim card etc. same error.
Event ID: 21
Event Source: KDC
Event Type: Warning
Event Description: The client certificate for the user TPE\damla.erdogmus is not valid and resulted in a failed smartcard logon.  Please contact the user for more information about the certificate they're attempting to use for smartcard logon. The chain status was : A required certificate is not within its validity period when verifying against the current system clock or the timestamp in the signed file.


For more information see Help and Support Center at
Comment:
Event ID: 21
Event Source: CertSvr
Event Type: Error
Event Description: Certificate Services could not process request 23 due to an error: The request's current status does not allow this operation. 0x80094003 (-2146877437).
Comment:
Event ID: 21
Event Source: ttatdm
Event Type: Error
Event Description: A network component has not started or the specified name could not be handled. ("Y":" "\\<SERVER>\Drive A for <USERNAME>")
Comment: Occurring on a Terminal Server which is used by Netilla NSP platform for Thin Client apps.
Event ID: 21
Event Source: ADSMServer
Event Type: -
Event Description: -
Comment: The description for Event ID ( 21 ) in Source ( ADSMServer ) cannot be found. The local computer may not have the necessary registry information or message DLL files to display messages from a remote computer. You may be able to use the /AUXSOURCE= flag to retrieve this description, see Help and Support for details. The following information is part of the event: Server: SPECKTSMSRV ANR2034E SELECT: No match found using this criteria..
Index: 9425
Event ID: 21
Event Source: Corrected Machine Check
Event Type: Warning
Event Description: A corrected hardware error occurred.  

Error Source: Corrected Machine Check

Error Type: 42532878

Processor ID Valid: Yes
Processor ID: 0x1
Bank Number: 4
Comment:
Event ID: 21
Event Source:  
Event Type: -
Event Description: -
Comment: I had this problem on an NSP box with software version 6.2.0.7

I solved it by disabling "Enable Client Drive Mapping WINS server " under general properties of the Thin service.  Changing this option restarts the Thin service but to get it to work correctly I had to re-boot the box. Index: 0
Event ID: 21
Event Source: TermServLicensing
Event Type: Warning
Event Description: The Terminal Server Licensing server xxxxxxxxx has no permanent licenses for product ''A02''. Use Terminal Server Licensing administrative tool to register more licenses. The Terminal Server ''xx.xxx.xx.xxx'' was refused licenses of type ''A02'' due to this condition.

Comment:
Event ID: 21
Event Source: Kerberos
Event Type: Error
Event Description: Kerberos Protocol encountered an error while Validating the KDC Certificate on NIPR and SIPR.

This error typically occurs if the certificate chain cannot be validated from the local trust store.
Comment: DOD certs are delivered via GPO in the baseline policy but sometimes don't work properly. Often these certificates can be installed on the virtual image to ensure certificate chain exists and reduce these issues. Additionally often a reboot or hard shutdown will wake up the client side extension and apply all the policies needed.

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