After upgrade to VCenter 6.5 we were not able to see the WWN when trying to connect a LUN. After removing the VCenter credentials from SnapDrive we were not able to connect to the VCenter again. The error we had is: Cannot connect to "vCenter_Name on port 443". The underlying connection was closed.
I could not find a solutions on the Netapp site but i did found a solution and wanted to share: