2013-08-02T13:28:57.976+01:00 [03732 warning 'Default'] [,0] [NFC ERROR] NfcNewAuthdConnectionEx: Failed to connect to peer. Error: Connection terminated by server
'NFC' is the protocol used for data cloning, 'server' means the ESX host; otherwise the message seems clear enough.
One possible reason could be firewall issues.
HTH
Plamen