Remote access using cloud

Hi guys

I have configured a Mik WAP LTE to run in my car with a Vodacom SIM card and 2 x SSID’s

  1. Private - private use in the car for the family
  2. Free WiFi - public wifi that people outside my car can use when I’m parked. I have configured a hotspot for this.

Both are working perfectly.

Now I am trying to access the Mik in my car from my office.

I have already configured the cloud setting by enabling DDNS.
I have configured the firewall to accept requests from port 8921.

I cannot connect remotely to my device in the car using winbox and the DDNS address I got from cloud.
It appears the ip addresses are the problem but I don’t understand what to do next.

Any help will be much appreciated. I am a beginner user.

Please don’t duplicate the posts.
http://forum.mikrotik.com/t/mikrotik-cloud-remote-access/119672/1