HTTPS Web Service datastore : does not work in case of proxy

Data Services 12.2 on Windows XP SP2
I've set up a datastore, type "web service", url is https://.... (an external web service, outside of our company)
I'm able to import the functions of this web service into the datastore.
In a DF, in a query transform, I call one these functions.
The job fails with this error message :
There is no response for the web service <searchCertificate>. Ensure that the network, web server, and service are running properly. Also ensure that the service client call time out is set properly.
I'm sure the web service is active. I have to pass a proxy.
When I do not have to pass a proxy (when I execute this job on my laptop not connected to the office network) the job runs fine !
How can you configure the axis2.xml so that https can run with a proxy ? (no problem to do this for http web services, but I do not see a solution for https web services !)
Thanks !!

Hi Sukarna,
the connection is not the problem.
Actually I've tested the scenario of abap proxy --> PI -->abap proxy for the same interface, it works fine. Only when I try ws instead of proxy, I got this error. Since proxy scenario works fine, the connection should not be issue.
any more clues?
Thanks

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"James Wilson" <[email protected]> wrote in message
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