2012 Remote Desktop KVP Sessions

Hi

With our new 2012 RD Server, I have 10 CALS installed (per user).  Say if the 12 users log in, I notice in the event log two errors with the same event ID.  The sessions seems to work fine for everyone connected.

1152 TerminalServices-RemoteConnectionManager
Failed to create KVP Sessions String.  Error Code 0x8007007A

Do I need more CALS?

Thanks