Outlook hanging in TS sessions - need help interpreting ProcMon findings "FSCTL_OPLOCK_BREAK_NOTIFY"

i have 2 ts servers (windows 2008 [not r2]) outlook 2007. on regular basis users not able log outlook. ts servers have on average 10 users per server logged in. when start outlook , put in credentials, outlook hang. resolve , user able run outlook later on.

i've been trying capture useful information procmon. i've found when outlook hangs these 2 of last entries in proc mon:

date & time:	2/15/2012 11:05:06  event class:	file system  operation:	querystandardinformationfile  result:	not implemented  path:	\device\rdpdr\tsclient\scard\34  tid:	14744  duration:	0.0000349    date & time:	2/15/2012 11:05:06  event class:	file system  operation:	deviceiocontrol  result:	  path:	\device\rdpdr\tsclient\scard\34  tid:	14744  duration:	  control:	fsctl_oplock_break_notify  

however, when outlook succeeds see this:

date & time:	2/15/2012 10:56:58  event class:	file system  operation:	createfile  result:	success  path:	\device\rdpdr\tsclient\scard\18  tid:	11468  duration:	0.0001049  desired access:	generic read/write  disposition:	supersede  options:	  attributes:	n/a  sharemode:	read, write  allocationsize:	0  openresult:	superseded    date & time:	2/15/2012 10:56:58  event class:	file system  operation:	querystandardinformationfile  result:	not implemented  path:	\device\rdpdr\tsclient\scard\18  tid:	11468  duration:	0.0000163    date & time:	2/15/2012 10:56:58  event class:	file system  operation:	deviceiocontrol  result:	fast io disallowed  path:	\device\rdpdr\tsclient\scard\18  tid:	11468  duration:	0.0000032  control:	fsctl_oplock_break_notify    date & time:	2/15/2012 10:56:58  event class:	file system  operation:	deviceiocontrol  result:	success  path:	\device\rdpdr\tsclient\scard\18  tid:	11468  duration:	0.0040900  control:	fsctl_oplock_break_notify    date & time:	2/15/2012 10:56:58  event class:	file system  operation:	deviceiocontrol  result:	fast io disallowed  path:	\device\rdpdr\tsclient\scard\18  tid:	11468  duration:	0.0000029  control:	fsctl_request_oplock_level_2    date & time:	2/15/2012 10:56:58  event class:	file system  operation:	deviceiocontrol  result:	success  path:	\device\rdpdr\tsclient\scard\18  tid:	11468  duration:	0.0000056  control:	fsctl_request_oplock_level_2    date & time:	2/15/2012 10:56:58  event class:	file system  operation:	deviceiocontrol  result:	fast io disallowed  path:	\device\rdpdr\tsclient\scard\18  tid:	14204  duration:	0.0000084  control:	0x900e0 (device:0x9 function:56 method: 0)    date & time:	2/15/2012 10:56:58  event class:	file system  operation:	deviceiocontrol  result:	  path:	\device\rdpdr\tsclient\scard\18  tid:	14204  duration:	  control:	0x900e0 (device:0x9 function:56 method: 0)    date & time:	2/15/2012 10:58:13  event class:	file system  operation:	deviceiocontrol  result:	fast io disallowed  path:	\device\rdpdr\tsclient\scard\18  tid:	12340  duration:	0.0000036  control:	fsctl_oplock_break_notify    date & time:	2/15/2012 10:58:13  event class:	file system  operation:	deviceiocontrol  result:	success  path:	\device\rdpdr\tsclient\scard\18  tid:	12340  duration:	0.0038273  control:	fsctl_oplock_break_notify

i'm not sure happening or how identify problem. can me interpret these findings?

there nothing in event viewer orther typical apphang message when close outlook.

hi,

does the problem occur if start outlook in safe mode?

are using smart cards in environment?  if disable smart card redirection in remote desktop client (local resources tab, more...), problem still occur?

outlook can hang if there problem connection exchange server and/or if not receiving response request.

-tp

Windows Server  >  Remote Desktop Services (Terminal Services)