I am getting the following error om my DHCP server using windows 2003 standard: Error Code 20 :<br/><br/> <p class=MsoNormal style="margin:0in 0in 0pt"><span style="font-size:8.5pt;font-family:'MS Shell Dlg'">The currently selected KDC certificate was once valid, but now is invalid and no suitable replacement was found.<span style="">  </span>Smartcard logon may not function correctly if this problem is not remedied.<span style="">  </span>Have the system administrator check on the state of the domain's public key infrastructure.<span style="">  </span>The chain status is in the error data.</span></p>© 2009 Microsoft Corporation. All rights reserved.Thu, 09 Jul 2009 01:22:54 Z00616252-f237-44b6-ab08-d0885de49736http://social.technet.microsoft.com/Forums/en-US/mscomops/thread/00616252-f237-44b6-ab08-d0885de49736#00616252-f237-44b6-ab08-d0885de49736http://social.technet.microsoft.com/Forums/en-US/mscomops/thread/00616252-f237-44b6-ab08-d0885de49736#00616252-f237-44b6-ab08-d0885de49736jeanm1http://social.technet.microsoft.com/Profile/en-US/?user=jeanm1I am getting the following error om my DHCP server using windows 2003 standard: Error Code 20 :<br/><br/> <p class=MsoNormal style="margin:0in 0in 0pt"><span style="font-size:8.5pt;font-family:'MS Shell Dlg'">The currently selected KDC certificate was once valid, but now is invalid and no suitable replacement was found.<span style="">  </span>Smartcard logon may not function correctly if this problem is not remedied.<span style="">  </span>Have the system administrator check on the state of the domain's public key infrastructure.<span style="">  </span>The chain status is in the error data.</span></p>Wed, 24 Jun 2009 07:43:04 Z2009-06-24T07:43:04Zhttp://social.technet.microsoft.com/Forums/en-US/mscomops/thread/00616252-f237-44b6-ab08-d0885de49736#9b5b6d1a-34a7-4d04-baec-a07e8fe5005fhttp://social.technet.microsoft.com/Forums/en-US/mscomops/thread/00616252-f237-44b6-ab08-d0885de49736#9b5b6d1a-34a7-4d04-baec-a07e8fe5005fCommandBreakhttp://social.technet.microsoft.com/Profile/en-US/?user=CommandBreakWhat does your CA architecture look like?<br/><br/>have you recently renewed your root certificate, did your dhcp server get the new version?Thu, 09 Jul 2009 01:22:51 Z2009-07-09T01:22:51Z