Hi all,

I am having yet more issues with multicasting following upgrading to SCCM 2012 R2. (running on Server 2008 R2).

I have tried several times now:

unticking all images marked for multicast

unticking all DPs from enable multicast

waiting for WDS to be removed

reboot

enable DP for multicast

wait for WDS to be installed

reboot

enable image for multicast

But when I run my task sequence the smsts.log does not recognise that I have a multicast enabled DP and begins to download via unicast.

extract from smsts.log: 

<![LOG[Locations: Multicast = 0, HTTP = 1, SMB = 0.]LOG]!><time="10:13:18.066-60" date="07-08-2014" component="ApplyOperatingSystem" context="" type="1" thread="1244" file="resolvesource.cpp:2749">

On the server WDS is installed, running and looks healthy. 

All the multicast logs look healthy apart from MCSIsapi.log which states:

Failed to perform health check (0x80004005)

HealthCheckRequest::HandleMessage failed with errorcode (0x80004005)

Failed to process HEALTHCHECK request for client ffffffff-ffff-ffff-ffff-ffffffffffff

MCSRequestHandler::HandleMessage for Op HEALTHCHECK failed with server errorcode 2052

I have all the MCS keys in the registry. SerializedMCSKey and SignedSerializedMCSKey are both populated.

Can anyone shed any light on how to overcome this issue?

Many thanks,

Jay

Hi,

Quote:

"MCS had an error itself. If you look under the hklm/software/microsoft/syswow64/sms/mcs key you should have a long list of keys. I just had 3 one of which was empty

I had to do this to fix it

unchecked Allow this package to transfered via multicast at package/image properties cleared SerializedMCSKey and SignedSerializedMCSKey in registry (HKLM\Software\SMS\MCS) unchecked enable multicast at dp properties checked enable multicast at dp properties checked Allow this package to transfered via multicast at package/image properties checked transfer this package only via multicast Just running the mcs.msi or redeploying the DP doesnt work

http://social.technet.microsoft.com/Forums/en-US/configmgrosd/thread/e6ffd292-ca2b-4c4c-ae9a-b8ffa0afb3bd"

For more information: http://social.technet.microsoft.com/Forums/systemcenter/en-US/4b443cb4-ebac-4870-9715-bcd8faa17cbf/mcsisapi-throwing-errors?forum=configmgrosd

Best Regards,

Joyce

Thanks for the reply but as stated in my post I have already tried these steps multiple times of removing the multicast option from the DP. The MCS keys get completely removed from the registry when you opt to remove the WDS role from the server as part of disabling multicasting from the DP.

Yes, I know this is an old post, but Im trying to clean them up. Did you solve this problem, if so what was the solution?

Since no one has answer this post, I recommend opening  a support case with CSS as they can work with you to solve this problem.

The solution for me; as well as removing the multicast role from the DP and then re-enabling it was to remove my affected WIM images from the DP too and then re-add them. After this the issues went away.

Thanks,

Jay

• Marked as answer by Jaysoul 22 hours 2 minutes ago