I currently have 4 websites that run my home desktop using XAMPP. They operate on ports 80, 81, 7733 and 25293.
The first three start normally when accessed from an external network, but the last (25293) will not load. (This site could not be reached. ERR_CONNECTION_FAILED)
I am forwarding the ports of all 4 ports in exactly the same way. As soon as I'm not on the local network, the page will stop loading.

I tried to open the port in my firewall, but achieved nothing. What can I do to solve this problem?
The error I get when visiting a port on an external network:

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