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Need some help here. I have a medium sized SCCM 2012 environment, single Primary Site server, 5 Secondary Site servers. For the most part, everything works very well, with the exception of task sequences. In most cases, on the initial push of a task sequence, around half will "stall" with a status of running and "Program Started", and go no further. This happens across the board, and to no particular site, subnet, boundary, device type, OS, etc. When I say there is no commonality, I mean there is none that I can find, except that the machine stalls at "Program Started". Couple other notes: Content in most all cases is downloaded without issue, and actually present in the appropriate CCMCACHE folder Nothing is listed in SMSTS.log. When I say nothing, the log will usually not even showing having been updated since the last task deployment The machine is pingable, online, with a current client, and recent Heartbeat DDR Other items (updates, etc) work on the system I have tried with, and without a maintenance window. Without a maintenance window, I ensure that "Software Installation" and "System restart" option outside maintenance window are both checked All Distribution Points have current package version The task shows up in CCMEXEC.log Notifying endpoint 'execmgr' of __InstanceModificationEvent settings change on object CCM_SoftwareDistribution.ADV_AdvertisementID="HLP20103",PKG_PackageID="HLP00094",PRG_ProgramID="*" for user 'S-1-5-18'. CCMEXEC 7/8/2014 7:40:43 PM 2128 (0x0850) The only real errors I ever find are in the TSAgent.log file an are as follows: There are no locations for this program TSAgent 7/8/2014 10:05:51 PM 3408 (0x0D50) Task Sequence Manager could not get active request info. code 80004005 TSAgent 7/8/2014 10:05:51 PM 3408 (0x0D50) Failed to get the details of the execution request. code 0x80004005 TSAgent 7/8/2014 10:05:51 PM 3408 (0x0D50) Task Sequence Agent could not get active request info. code 80004005 TSAgent 7/8/2014 10:05:51 PM 3408 (0x0D50) Error initializing TS environment. Code 0x80004005 TSAgent 7/8/2014 10:05:51 PM 3408 (0x0D50) Task sequence launcher advertisement failed!. Code 0x80004005 TSAgent 7/8/2014 10:05:51 PM 3408 (0x0D50) CTSAgent::Execute - Failed to launch Task Sequence manager. TSAgent 7/8/2014 10:05:51 PM 3408 (0x0D50) On subsequent deployment attempts (third party tools that "redeploy" a deployment) most will succeed, but again, several will hang at the same screen. After several "Re-Deploys" I can usually get to 100%. Initially, I thought the issue was with the destination OS (2009 POS...I know I know, not my choice), but I've seen the same issue on Win 7 machines with all the same symptoms. The system continues to work normally until such time as you "re-deploy" the app. Have tried reboots to fix to no avail. Open to thoughts and help here...Please!!!