Mobile app not connecting when disconnected from home wifi

I’m not able to connect the dashboard when i’m away from my home or if i turn off wifi and try to connect via my Verizon iPhone. If i log onto the web site ( I’m able to control and manage.

It does work if I connect to a wifi device off my home network i.e Verizon Mifi however it will not work using Verizon LTE wireless connection

Any help would be appreciated