Can't connect to my companion rPI via WIFI

[Sandor95]

Hi!

I can’t connect to my companion rPI from my surface computer via Wi-Fi. I tried with notebook and phone as well, but I got only “Disconnected” message in QGroundControl’s headline.

Here are the log messages what I got from the surface computer’s QGroundControl:

[D] at D:\a\qgroundcontrol\qgroundcontrol\src\QGCApplication.cc:281 - "Settings location "C:/Users/Me/AppData/Roaming/QGroundControl.org/QGroundControl.ini" Is writable?: true"
[D] at D:\a\qgroundcontrol\qgroundcontrol\src\QGCLoggingCategory.cc:120 - "Filter rules "*Log.debug=false\nRTKGPSLog.debug=true\nGStreamerAPILog.debug=true\nqt.qml.connections=false""
[D] at D:\a\qgroundcontrol\qgroundcontrol\src\QGCApplication.cc:384 - "System reported locale: QLocale(English, Latin, United States) ; Name "en_US" ; Preffered (used in maps):  "en-US""
[E] at :0 - "serialnmea: No known GPS device found. Specify the COM port via QT_NMEA_SERIAL_PORT."
[E] at D:\a\qgroundcontrol\qgroundcontrol\src\PositionManager\PositionManager.cpp:188 - "QGCPositionManager error 0"
[E] at :0 - "Location access failed."
[D] at D:\a\qgroundcontrol\qgroundcontrol\src\Vehicle\MAVLinkLogManager.cc:360 - "MAVLink logs directory: "C:/Users/Me/Documents/QGroundControl/Logs""
[D] at D:\a\qgroundcontrol\qgroundcontrol\src\QtLocationPlugin\QGCMapEngine.cpp:164 - "Map Cache in: "C:/Users/Me/AppData/Local/cache/QGCMapCache300" / "qgcMapCache.db""
[D] at qrc:/qml/MainRootWindow.qml:51 - "QGCCorePlugin(0x18a7b9f5830) []"
[D] at D:\a\qgroundcontrol\qgroundcontrol\src\MissionManager\MissionController.cc:2371 - "setCurrentPlanViewSeqNum"
[D] at D:\a\qgroundcontrol\qgroundcontrol\src\MissionManager\MissionController.cc:2371 - "setCurrentPlanViewSeqNum"
[D] at D:\a\qgroundcontrol\qgroundcontrol\src\QGCApplication.cc:860 - "Download QGC stable version failed "Error during download. Error: 3""
[D] at D:\a\qgroundcontrol\qgroundcontrol\src\MissionManager\MissionController.cc:1272 - "_recalcFlightPathSegments homePositionValid false"
[D] at D:\a\qgroundcontrol\qgroundcontrol\src\MissionManager\MissionController.cc:1272 - "_recalcFlightPathSegments homePositionValid false"

But I can ping the companion from the phone and from the computer as well (not the same time, of course).

Here is what i see on phone, and the ping with termux:

And here is what I got on computer:

[EliotBR (Eliot)]

Hi @Sandor95, welcome to the Blue Robotics forum

Can you explain what software you’re running on the Raspberry Pi and Pixhawk, and what connection configuration you’ve done in QGroundControl?

Some comments on the information in your post:

• Neither of the Onboard Computer softwares that Blue Robotics has been involved with supports the Raspberry Pi 2B
• The Pixhawk 2.4.8 is generally not recommended due to low quality components (although that shouldn’t be relevant to your connectivity issue)
• Using QGroundControl over wifi is not supported or recommended for use with ArduSub vehicles
• ArduSub is also not actively supported for user with QGroundControl on mobile devices / tablets

If you’re not using an ArduSub-based vehicle or Blue Robotics software then you likely want to be on the more general ArduPilot forum instead (or the PX4 forum if you’re not running ArduPilot software).