Issue:

Trying to push a new image to a desktop pool, and got a provisioning error:

Fault type is VC_FAULT_FATAL – A general system error occurred: Connection refused

After searching for a fix, I came across this article from VMware.

Solution:

Restarting vCenter that Horizon View is referencing seems to address the issue.

https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2118319