vcenter login to grey screen

[VMZ]

My vCenter 6.5 web interface (port 9443) after login becomes gray and hang without obvious event causing it.  I performed update through port 5480 and rebooted but did not fix the problem.  Anyone ran into similar problems?

[a_p_]

Please check whether your browser requires an acknowledgement for running Flash content.

André

[sjesse]

What web browser are you using. I've seen this caused in firefox by the flash addon not starting, if you click on the gray part in firefox it asks you to enable flash.

[kenbshinn]

Chrome does a similar thing. If you click on the lock icon next to HTTPS you should see this menu

Make sure that it is set to allow, the default is Ask, and for some reason it never does.