I'm assuming you followed the install-configure guide (if it is HCI v2.0):

https://download3.vmware.com/software/vmw-tools/hcibench/HCIBench_2.0_User_Guide.pdffile:///C:/Users...

That said, it sounds as if you might have missed a step prior to running the test configuration, specifically around the root user/pw access.  See the top of page 11 in the guide above.  

Hopefully it's that simple...