UAV Toolbox Support Package for PX4 Autopilots — SITL plant simulation running much slower after recent windows update
I’ve been developing a custom controller using this toolbox, and everything has been working well after following the examples provided in the documentation.
However, after this last Tuesday, April 14th 2026, I attempted to monitor and tune my controller, and it threw an error saying the build failed and I need to go through the toolbox setup again (this is the first time I’ve gotten this error). I did this, and that is when problems developed. When using a simulink plant simulation for the PX4 SITL Host, the plant can no longer run in real time. It runs at about a quarter of the speed. I booted up the PX4 monitor and tune with plant example, and even that example is now running slowly too! Is it possible the recent security update affected TCP communication between Windows and the WSL network adapter?
Also, I am on R2025a.I’ve been developing a custom controller using this toolbox, and everything has been working well after following the examples provided in the documentation.
However, after this last Tuesday, April 14th 2026, I attempted to monitor and tune my controller, and it threw an error saying the build failed and I need to go through the toolbox setup again (this is the first time I’ve gotten this error). I did this, and that is when problems developed. When using a simulink plant simulation for the PX4 SITL Host, the plant can no longer run in real time. It runs at about a quarter of the speed. I booted up the PX4 monitor and tune with plant example, and even that example is now running slowly too! Is it possible the recent security update affected TCP communication between Windows and the WSL network adapter?
Also, I am on R2025a. I’ve been developing a custom controller using this toolbox, and everything has been working well after following the examples provided in the documentation.
However, after this last Tuesday, April 14th 2026, I attempted to monitor and tune my controller, and it threw an error saying the build failed and I need to go through the toolbox setup again (this is the first time I’ve gotten this error). I did this, and that is when problems developed. When using a simulink plant simulation for the PX4 SITL Host, the plant can no longer run in real time. It runs at about a quarter of the speed. I booted up the PX4 monitor and tune with plant example, and even that example is now running slowly too! Is it possible the recent security update affected TCP communication between Windows and the WSL network adapter?
Also, I am on R2025a. px4, uav toolbox support package, monitor and tune, simulink, plant MATLAB Answers — New Questions









