Connect to mission planner from diffrent area network

ArduCopter Copter 4.0
1

i was able to use remoti.it to access the pi from different network and I was able to access pi from Putty but mission planner is not loading, any idea how to fix that please
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2

Did you setup a TCP connection to the pi from within MP?

3

Yes
But mission planner give me error

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4

You can try adding --master=tcp:0.0.0.0:14550, maybe mavproxy doesn’t listen by default.
Familiarize yourself with mavproxy parameters: Startup Options — MAVProxy documentation
Is mavproxy a requirement? mavlink-router or cmavlink might be better choices for a pi.