VM Monitor-underlying connection was closed: An unexpected error occurred on a send

I've been using VM monitor on my esxi 6.5 server.  I just upgraded to 6.7, and now vm monitor won't connect.

I'm getting the following message "An error occurred while contacting ip address of server.

The underlying connection was closed: An unexpected error occurred on a send."

I've searched and don't get a hit with my error.

Any assistance would be appreciated.

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