Acronis Backup 12.5: "SOAP 1.1 fault: SOAP-ENV:Client" error

Symptoms

You are trying to deploy Virtual Appliance (in the web console, you click Add and select VMware ESXi). Or you want to change credentials for ESX(i) host/vCenter.

The following error appears:

Failed to connect to ESX server '[hostname_or_IP]'.
Failed to connect to ESX server 'https://[hostname_or_IP]/sdk'.

1) SOAP 1.1 fault: SOAP-ENV:Client[no subcode] "D" Detail: connect failed in tcp_connect()

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