Lync Server 2010 - "The given key was not present" when bootstrapping.

I am attempting to bootstrap an existing Lync 2010 SE deployment, after adding a Archiving/Monitoring server.  However, I am receiving this error when attempting the final step of bootstrapping the SE Front-End server:

I have successfully performed these steps (Not necessarily in this order):

Added Archiving and Monitoring servers to Topology and published with no errors.

Installed SqlServer 2008R2 and created the FileShare

Successfully bootstrapped the Archiving / Monitoring server

Installed Monitoring Tools to the database

I am a member of both the CSAdministrator, and the RTCUniversalServerAdmins groups.

I have looked at about 4 or 5 other posts describing a similar problem, but they all seem to reference each other, and none of them are helping in this case..  I can perform Enable-CsComputer -verbose with no errors, but both the Wizard and bootstrap.exe generate this odd dictionary error.

Any ideas are greatly appreciated.