NetWeaver Gateway - Network Connection Error

Hello Community,

We have to do the Tutorial SAP HANA Cloud "Gateway Consumption" Application Scenario 

We have some problems with point 2. "Connection SAP NetWeaver Gateway Productivity Accelerator to SAP NetWeaver Gateway". We don't get a Connection to the Gateway. If we use the given Parameters, we get a Network connection error.

So we tried to use the URL. This works.

But then we don't get any service to chose.

We searched a long time, but we haven't found the solution for this problem.

Can anybody please help us?

Thank You.

Best regards

Moritz and Thomas