Your problem is simple: 2014-05-12T14:54:39.459+02:00 [03700 warning 'Default'] [,0] [NFC ERROR] NfcNewAuthdConnectionEx: Failed to connect to peer. Error: Failed to connect to server seuh2p532.it.mgt:902 2014-05-12T14:54:39.459+02:00 [03700 info 'Default'] Sysimgbase_DiskLib_OpenWithPassPhrase failed with 'NBD_ERR_NETWORK_CONNECT' (error code:2338)
the ESX is not visible or the port 902 is closed.