After upgrade to VMware 2.7 backups run in NBD mode instead of SAN mode (4033647)

Looking at the binary log NetVault never tries to use SAN as seen below:

Job Message 2014/03/20 15:51:39 310 Data Plugin SMARTCLIENT  TaskID 1u VM disk '[vnx-sr17-ds1] LUKKIEN-rapportage-nw/LUKKIEN-rapportage-nw-000004.vmdk' opened in 'nbd' mode

We see the following in the VDDK trace:

014-03-20T16:42:35.251+01:00 [04272 warning 'Libs'] SSL_IsVerifyEnabled: failed to open the product registry key. Falling back to default behavior: verification on. LastError = 0
2014-03-20T16:42:35.251+01:00 [04272 error 'HttpConnectionPool-000000'] [ConnectComplete] Connect failed to ; cnx: (null), error: class Vmacore::Ssl::SSLVerifyException(SSL Exception: Verification parameters:
--> PeerThumbprint: B2:1E:19:8D:5D:4E:9A:40:F1:5E:F8:38:79:88:AE:96:D9:6F:4E:0E
--> ExpectedThumbprint:
--> ExpectedPeerName: vcenter01.lukkien.lan

2014-03-20T16:42:35.251+01:00 [03992 error 'Default'] Cannot use advanced transport modes for vcenter01.lukkien.lan/moref=vm-669/snapshot-141860: Other error encountered: SSL Exception: Verification parameters:
--> PeerThumbprint: B2:1E:19:8D:5D:4E:9A:40:F1:5E:F8:38:79:88:AE:96:D9:6F:4E:0E
--> ExpectedThumbprint:
--> ExpectedPeerName: vcenter01.lukkien.lan
--> The remote host certificate has these problems