Tower/Mission Maker Can't Connect to SITL

I followed the directions here to download SITL. It seems to be successful as I can execute the commands in the map like it suggested. I’m also able to connect SITL to Mission Planner via a UDP connection on port 14550 as the directions explained. I later executed an additional command to ensure one of the outputs of SITL is the IP address of my Android tablet (Galaxy Tab A 2016): /home/UserName/ardupilot/Tools/autotest/ -L 3DRBerkeley --console --out :14550 --map

However, when I downloaded the latest version of Tower on my tablet (which is Mission Maker in the Google Play Store), when I run SITL on my laptop and try to connect to Mission Maker via UDP, nothing happens. I’ll open Mission Maker while SITL is running, enter the correct UDP port/connection info, and hit “Connect,” but nothing happens (no error message, no successful changes in the map).

What am I missing?


I’m not sure what OS you are using, but I had similar issue.
I had my SITL running on VMware, and it stopped working when I had to reinstall VMware and recompile SITL.
I was able to connect QGroundControl, but not DroidPlanner Tower (Mission Maker now).
I figured that it’s either VMware (v.15) or github from Ardupilot.

So this is what I did.
Used Virtual Box
installed Ubuntu 16.04
cloned the source code from my repo (
installed required packages via the script ($ Tools/scripts/ -y)
Now it works again.

Let me know if you still have a problem with it.

Or your issue may just be the way you add the port.
I would try the following:
start your SITL
then type (output add {the tablet’s ip address}:14550)

Let me know how it goes!