Hi Mike,

We don't have any Maintenance Windows.
Our deployment is advertised to both All Systems and Unknown Computers and it 
is only available to PXE and Media.
Yes, both unknown machines as well as known machines are seeing this problem.

This morning I was doing some build tests.  I started one machine just fine.  
Once it was going I started a second machine and at it had this problem.

The two other times this happened the problem  just "went away" after a couple 
of hours.

Mike

From: [email protected] [mailto:[email protected]] On 
Behalf Of Mike Dzikowski
Sent: Wednesday, January 14, 2015 10:03 AM
To: [email protected]
Subject: RE: [mssms] CM12 - No Task Sequences Available??

Hi Mike,

Just curious - Has anything changed with the deployment?

Are you deploying to unknown machines or All Systems (to only PXE and Media)?

Is this behavior happening for unknown machines as well as known machines?

Maintenance Windows?

Mike-



________________________________
From: [email protected]<mailto:[email protected]>
To: [email protected]<mailto:[email protected]>
Subject: [mssms] CM12 - No Task Sequences Available??
Date: Wed, 14 Jan 2015 14:53:14 +0000
For the third week in a row something has knocked out OS deployment offline.

We can PXE boot a machine but during the boot it will suddenly reboot out of 
WinPE and back into the full OS.  We can pop a command window to prevent the 
reboot and the SMSTS log has this right before it bailed out and attempted to 
reboot:

"There are no task sequences available to this computer.. Please ensure that 
you have at least one task sequence advertised to this computer.  Unspecified 
error (Error: 80004005; source: Windows)"

If there were no sequences advertised then SCCM wouldn't allow it to PXE boot 
in the first place.

I boot a machine using SCCM boot media and when I hit Next on the welcome 
screen I get the message that there are not sequences available.
SMSTS log :  "No assigned task sequences"

There are no other errors in the SMSTS logs on the clients.  The site status 
within SCCM shows all green as well.

Now this has happened three weeks straight now.  It first happened New Year's 
Eve, then Thursday of last week and now again this morning.  It starts around 
9:00 am and magically corrects itself within 2-3 hours.

We've checked out networking, DNS, WINS, the SCCM guys say that there are no 
external process running (like backups, virus scans, etc.) on the 
infrastructure at this time.  It's maddening since it magically starts and 
magically corrects itself and we cannot figure out what is causing it.  Within 
WinPE we can ping the Management Points, in fact we can ping all of the SCCM 
servers.  Machines that are already in the process of building continue to do 
so and do not fail.  Also, any non-OSD deployment will still work during this 
time.  We can pull deployments, even non-OSD task sequences will run.  So 
whatever is causing the problem is only affecting machines attempting to start 
an OS deployment.

Anyone else ever see anything like this?

Mike Marable
Application Programmer/Analyst Lead
Enterprise Device Engineering and Management
MCTS, MCITP, MCSA, MS 
[Profile<https://www.mcpvirtualbusinesscard.com/VBCServer/MikeMarable/profile>] 
[Blog<http://thesystemsmonkey.wordpress.com/>]
--------------------------------------------
"The difficult we do at once. The impossible takes a little longer."
-US Army Corps of Engineers

"It is better to have less thunder in the mouth and more lightning in the hand."
-Apache Proverb

I will rise when I have fallen.

"Unless you try to do something beyond what you have already mastered, you will 
never grow."
-Ralph Waldo Emerson

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