API Provider connection failure

[#1]

Hi,experts

I am creating an API Provider following the tutorial Create an API Provider System.

When I test the connection,it returns 504; Message : Gateway Timeout

I change the hostname to ip address. It returns 500; Message : Internal Server Error

I can open the catalog service url in the explorer

Please suggest how shoud I fix the problem

[zhangguangyao]

I fix the problem.I unchecked SSL and change the hostname to ip. It runs successfully