It happens on all T610's I've tried. in total we have 100+ units and with the first 10 I tested it happened. All of these are now unmanagable, since I don't have a way to reinstall the client and they lost connection to the Device Manager since the HPDM Agent service is not present any more.
Do you have a full install package of the latest agent?
Old agent version is 4.6.3660.21244 and 4.5.3660.18367
It's indeed WES7E, with image version 6.1.7601.252 (Dutch).
Task log:
agent.log:
2016-08-03 21:25:43 INFO Enhanced Write Filter present.
2016-08-03 21:25:43 INFO File Based Write Filter present.
2016-08-03 21:25:43 INFO Agent starts.
2016-08-03 21:25:43 INFO Sizeof(GrData)=32
2016-08-03 21:25:43 INFO XWFManager: already initialized
2016-08-03 21:25:43 INFO GetXWFStatusAndFilter:2 0
2016-08-03 21:25:43 INFO FBWF Is initialized
2016-08-03 21:25:43 INFO FBWF Is initialized
2016-08-03 21:25:44 WARN Try to get basic network information.
2016-08-03 21:25:44 INFO Succeeded to get basic network information.
2016-08-03 21:25:44 INFO Sizeof(GrData)=32
update.log:
Stop the old Agent successfully.
C:\Windows\xpeagent\..\temp\HPDMAgent.exe
C:\Windows\xpeagent\HPDMAgent.exe -r
Start to delete the old Agent: C:\Windows\xpeagent\HPDMAgent.exe
Start to copy the new Agent: C:\Windows\xpeagent\..\temp\Files\Agent.exe C:\Windows\xpeagent\HPDMAgent.exe.
Run C:\Windows\xpeagent\..\temp\install.cmd
C:\Windows\xpeagent\HPDMAgent.exe -i
Deploy the new Agent successfully.
new Agent index:1
Run c:\windows\xpeagent\wf.cmd
Invoke the new Agent successfully.
argc = 4, argv[3] = 1
bReboot = 1.
reboot in ProcessWriteFilter 2.
But after the update task and subsequent reboot, the HP Device Management Agent service is no longer present and the client looses it's connectivity to HP Device Manager
