QGC does not connect to default port 14550

[ytl001]

Expected Behavior

I am running gazebo classic simulator in a docker container (image: jonasvautherin/px4-gazebo-headless). QGC running on the same host as docker should automatically connect to default port 14550.

Current Behavior

QGC does not connect. Console shows (with qgc.comms.linkmanager and qgc.comms.linkmanager.verbose on):

I tried turning autoconnect all on, all off except udp, all off but with a manual link for port 14550 (as below). All scenarios produce the same results.

Steps to Reproduce:

Please provide an unambiguous set of steps to reproduce the current behavior

1. sudo /usr/local/opt/docker-mac-net-connect/bin/docker-mac-net-connect
2. docker run --rm -it jonasvautherin/px4-gazebo-headless 172.17.0.1 172.17.0.1
3. click on QGC icon to start QGC

System Information

When posting bug reports, include the following information

• Operating System: macOS Ventura 13.7.2
• QGC Version: Daily version a8ab437 64 bit, downloaded Feb 13, 2025
• QGC build:
• Flight Controller: PX4_SITL
• Autopilot (with version): px4 release 1.15.3 (17761279)

[HTRamsey]

I think this is docker related but I don't recall the solution right now. Did you try with the last stable build?

@DonLakeFlyer didn't you have an issue like this on MacOS too?

[ytl001]

Yes, I tried using the last stable build v4.4.3. Results are the same, except that with Linkmanagerverbose on, console seems to show that QGC is listening to a bluetooth port only:

I am running docker-mac-net-connect to make sure that the host can reach the container. Indeed I can ping the container from the host and when I set up a comm link to point to the container port assigned in px4, px4 reports a valid ground station heart beat (but QGC remains unconnected).