Hello, friend!
I don't understand what you mean by "open". Generally, ports on a device are enabled by default.
I understand this question in two ways:
No service is available on the device port.
You can log in to the WebUI of the device, map the port with services to port 44158 of the device through port mapping, and then implement service mapping.
The device port is disabled.
If the device is disabled, the device may be disabled due to the ISP customized version. In this case, contact the local ISP for a solution.
Thanks!