DON'T REALLY UNDERSTAND

Okay so if you have a M version of Radio SmartLink is kinda broken right now on the M control panel ONLY

If you have V3.2.37 and are running on a PC then when the radio is up and running up under the Settings Click on "Choose Radio / SmartLink setup" then that will log you out and bring you to the window that says connect or SmartLink setup, this is where you will need to set up the SmartLink account, Register the radio, Hit the LOCAL PTT or CW key, and then you set things up for your firewall there is a "V" down arrow about the middle of the screen and another Window will pop up the try to use the Automatic settings IF YOUR Router is set up automatic port forwarding by hitting the TEST button, If it fails then you will have to use the Manual settings and see what IP Ports and format needs to be setup in your router, When you get it correct then hit the TEST again and if it goes green then you should be good to go.

I think there is a Youtube that Mike or Eric made on setting this up and I know there are articles if you do a google search should pop right up.

This might see a bit much but I would give it a go, Hopefully your Router will configure itself when SmartLink asks it to.