Requirements
VMware ESXi ver. 6.5.0 should be installed on the server.
Vcenter vSphere Web Client ver. 6.5.0.
Define on the server a username and password for client login.
Please note that it is preferred the hosts on the Enterprise version should be connected to standard switches (Dynamic switches are not supported).
Login
...
Type the IP address of the installed server and use the user credentials as defined.
...