Cannot mount database when creating a new mailbox database

When creating a new mailbox database, on Exchange 2010, I get the error:
Couldn't mount the database that you specified. Specified database: DBname; Error code: An Active Manager operation failed. Error: The Microsoft Exchange Replication service may not be running on server servername. Specific RPC error message: Error 0x6d9 (There are no more endpoints available from the endpoint mapper) from cli_MountDatabase.

After  couple of minutes, it's possible to mount the Database manually.

I  experience this everytime a create new mailbox database.
Only sollution, is to uncheck "mount this database", and then manually mount it afterwards ;-)

Setup Wizard for Update Rollup X for Exchange server 2010 (KBxxxxxx) ended prematurely

When installing Update Rollup's for Exchange 2010, on a server 2008 with AUC enabled, I get this error:
Setup Wizard for Update Rollup X for Exchange server 2010 (KBxxxxxx) ended prematurely

Of course disabling AUC is not the best option, and I discovered that this works:
Open CMD as administrator (right click, choose run as administrator) and start the "Exchange2010-KBxxxxx-x64-en.msp" from the command prompt.