12.03.2018, 05:35
Apart from what NaS said above, I want you to make sure that you aren't behind two or more successive internal VLAN setup. You can test this by directly typing your external IP on your browser (You can try enabling remote access for this test) and if you can see your router login, that proves it.
In case you are behind two or more successive VLAN setup, you would require an access to your VLAN Gateway and forward your IP via that switch (Which is hardly possible unless you got access to it). Only then, you can allow external connections to connect to your server.
I know you might get a little confused over this statement of mine, but we can work it ahead if you let us know if you're able to connect to your router from the external IP.
In case you are behind two or more successive VLAN setup, you would require an access to your VLAN Gateway and forward your IP via that switch (Which is hardly possible unless you got access to it). Only then, you can allow external connections to connect to your server.
I know you might get a little confused over this statement of mine, but we can work it ahead if you let us know if you're able to connect to your router from the external IP.