SCCM – Multicast on client fails with error “Failed to get MCS key (Code 0x80004005)”

Problem:

Multicast during an SCCM 2012 R2 SP1 (1511 release) Task Sequence fails with error “Failed to get MCS key (Code 0x80004005)”. This error is found in the smsts.log log file on the (Windows 10 Enterprise x64 1511) client machine.

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Which Windows ADK version to use with Configuration Manager 1511?

I had some issues with the newest Windows ADK (1511) with Configuration Manager 2012 R2 SP1 CU2. As of yesterday, it’s possible to download the newest version of Configuration Manager: 1511. Because I had issues with the newest ADK, I’ve asked Microsoft on Technet if we still need to use the older ADK (10.0.26624.0) or if we can use the newest 1511 version of the ADK:

ADKVersion

Check the post mentioned in the image above to download the right ADK version when you are going to use the new Configuration Manager 1511.