Login Error

I am setting this up with the 6.0 SDK, which has extra security measures re: certificates

I can run the Datacentre checks fine and the Guest checks fine but get a login error on the host checks- I’ve logged into the vSphere client fine using the same username and password and I am able to browse the settings of the host with no issues

I have tried running the esxcli directly but it is getting the same error- I’ve tried using the ‘thumbnail’ but once again the same login issue….