vSphere Client is no longer available with the vSphere 6.5 release
Try The vSphere Web Client (Flash/Flex client)
The vSphere Web Client is supported on Chrome (latest and latest -1), Firefox (latest and latest -1), and IE10.0.19 and later (including IE11).
EXAMPLE:
https://YourESXIName.YourDomain.xxx/ui/#/login
https://YourESXIName-or-IP/ui/#/login
More info LINK:
https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=21479...
Raul.
VMware VDI Administrator
http://ITCloudStream.com/
www.ITSA.Cloud
