Hello guys, I'm having abit of an issue with smart cards. My company recently switched to full PIV card enforcement policies and everyone must use one now. However now an issue has came about where if someone removes their PIV card, undocks their laptop, and then re-inserts the card to unlock the unit while it is still undocked they receive an error stating "The system could not be unlocked. An error occurred trying to use this smart card. You can find further details in the event log. Please report this error to the system administrator". However if the unit is redocked it operates normally.
This has just started happening the past 2 months which is weird, nothing in the environment has really changed outside of vigorous patching being done on all units, perhaps a patch broke something? This has only effected 10 or so laptops (out of a few hundred) so far so if patching is the culprit it would seem odd to me.
I checked the event log for a unit I encountered with the issue and saw the following:
Log Name: System
Date: 10/31/2014 1:15:01 PM
Event ID: 616
Task Category: None
Reader monitor 'Dell Smart Card Reader Keyboard 0' received uncaught error code: Access is denied.
I'm not certain if this is in reference to the issue but it's the only entry I found in relation to a smart card listed as "Error". Also quite a few 615 errors (Reader removal monitor error retry threshold reached: Access is denied.).
Any help appreciated, I'm at my wits end here.