As per my understanding have it to do with signing/certification of the internet connection.
There is a property "InvokeOptions" in the
SOAP component. Type is SOAPInvokeOptions in the
unit SOAPHTTPTrans. Maybe it is a solution to change the InvokeOptions for your requests.
OT: your english is not bad, no need to worry about
I setting "InvokeOptions" [soIgnoreInvalidCert, soPickFirstClientCertificate]
Normally, with these settings it works, if I change I get an error.
I tried the various combinations but without success.