Proxy authentication required while deploying an application to cloud

Hi,

I'm following this tutorial : Develop your first End-to-End SAP HANA Cloud Application Scenario

http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/a0a7e630-2415-3010-57aa-cb1ad288780f?QuickLink=index&overridelayout=true&58540404244642

When I want to deploy it (step 2.4) I get the following error :

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My proxy settings are correct. Active provider is manual, HTTP and HTTPS are filled in and SOCKS is empty. Any ideas?

Regards,

Jonas