Problem with cross server connection Server Connect server-side API

I’m trying to connect to my Server Connect API quite a while now and I need some help.

My setup:

Server Connect API on local Intranet (IIS/PHP): https://api.vewa.de:10445/api/v1/security/auth

For testing purpose the API only sets a value, nothing else

You can test it by clicking on the link directly or by using https://resttesttest.com

Using this API from my Apache Webserver (https://www.webco.de/dmxConnect/api/api_test.php) on the server side gives me a Connection refused Error and I can’t find out why. Testing it on my Mamp or Docker installation it works.

Here is a screenshot of the server-side configuration:

If I use my test API from the client-side it does work.

What am I missing?

Edit:
I have two additional links

server-side API: https://www.webco.de/testapi.html
client-side API: https://www.webco.de/testapiclient.html

Could it be a problem because I use port 10445?

Failed to connect to api.vewa.de port 10445: Connection refused

check your port configuration

Thanks for trying.

What link did you use? Did you try the following?

https://api.vewa.de:10445/api/v1/security/auth

That one returns an auth string

that’s correct.

did you open 10445 port on your modem… ??

Yes, otherwise I wouldn’t get a connection to https://api.vewa.de:10445/api/v1/security/auth and https://www.webco.de/testapiclient.html (client-side API)

these links are working. what is the problem ?

I know. I posted the links to show that the API should work.

My problem is, that I need to use it in a Wappler Server API Action (see my configuration in my first post)

The following link uses the exact same API but from a server connect action:

https://www.webco.de/testapi.html

you still cannot accept requests from outside. port is not configured properly. You forwarded port 80 but 10445 no

I will check this again. Thank you!

@Teodor
You can close this topic.
As I can’t find a solution to change the port configuration I will try another solution.
Thank you!