Speed incorrect

The AgIo gps data displays correct speed but AgopenGPS displays a speed about 4 x faster than actual.
Ublox antenna connected to usb
Any suggestions?

Try latest version of AOG ?

What configuration did you put in the GPS receiver?
Can you send me the config file of your vehicle in AOG?
I hope I can help you.

My knowledge of the system is limited to pushing buttons.
Assuming you are asking: fixed antenna 100%gps fusion
Gps is at 9600 but have tried different settings.
When sitting still antenna reads 0 or 0.1 but speed displayed bounces around 0.5 to 1.2
While moving actual 5.0 displayed is 20 ±

Any updates on this? Same exact thing.

I don’t know if this is related.
I didn’t notice any issues on version 5.5.0.
A couple of days ago I tried version 5.6.10 and at real speed about 6 km/h aog speed display was 8 km/h. The number and the dial display was the same. Displayed speed wasn’t even constant, it varied from 8 up to 10 km/h at constant speed, mostly around 8 km/h.
The difference in GPS was that I disabled VTG as suggested somewhere for 5.6. Could it be related? Without VTG version 5.5.0 didn’t display the speed anymore.

Does 5.6.11 use VTG again? There’s been reports of issues with AoG calc speed from GGA. What’s your setup, single/dual, IMU?

I have Ardusimple simpleRTK2B F9P.
I enabled VTG NMEA message again. Now speed display is correct. I tried on versions 5.6.10 and 5.6.11.