Magio Sat Box ADB 2850ST Wan problem

[Julesd]

Hi all,
I have Magio sat box ADB 2850ST STB.
I am trying to open port 22 (SHH) but cannot acces it.
I am seeing it in my router but cannot acces it from anything on my lan network.

Can anyone help with this please?

Thank you.
Take care,
Jules.