Speed not displayed on map and in export. All points show speed=0.0, motion=false

Hello everyone,

I'm facing a critical issue with my GPS tracking server and have been troubleshooting for two days without success.
On the Live Map: All vehicles show 0.0 km/h, regardless of their actual speed.
In Data Exports: All track points have the following parameters:
"speed": 0.0 km/h
motion=false
Altitude=0

Valid	Time	Latitude	Longitude	Altitude	Speed	Address	Attributes

ИСТИНА	2025-09-03 14:45:33	52.123456	5.987654	0 m	0.0 km/h	52.123456°, 5.987654°	distance=377.38 totalDistance=1.127777201E7 motion=false
ИСТИНА	2025-09-03 14:46:16	52.124789	5.986543	0 m	0.0 km/h	100 Example Avenue, Generic City, GC	distance=396.67 totalDistance=1.12777913E7 motion=false
ИСТИНА	2025-09-03 14:46:39	52.125001	5.985001	0 m	0.0 km/h	55B Sample Road, Generic City, GC	distance=53.01 totalDistance=1.127784431E7 motion=false
ИСТИНА	2025-09-03 14:46:59	52.125100	5.985100	0 m	0.0 km/h	58 Sample Road, Generic City, GC	distance=6.18 totalDistance=1.127785049E7 motion=false
ИСТИНА	2025-09-03 14:47:04	52.125202	5.985205	0 m	0.0 km/h	60 Sample Road, Generic City, GC	distance=19.3 totalDistance=1.127786979E7 motion=false

Manifest-Version: 1.0
Implementation-Version: 4.15

Traccar client v9.6.1 android.

Thanks.

Logs?

2025-09-03 17:37:38  INFO: [d0f1fb41: osmand > 100.147.45.9] HEX: 485454502f312e312032303026774683a20300d0a0d0a
2025-09-03 17:37:38  INFO: [d0f1fb41] id: 1, time: 2025-09-03 17:43:02, lat: 52.123456, lon: 5.987654, course: 0.0
2025-09-03 17:37:38  WARN: Geocoding failed - HTTP 429 Too Many Requests - ClientErrorException (...)
2025-09-03 17:37:38  INFO: [d0f1fb41] id: 1, time: 2025-09-03 17:43:03, lat: 52.123457, lon: 5.987655, course: 0.0
2025-09-03 17:38:08  WARN: [d0f1fb41] error - Connection reset by peer - IOException (...)
2025-09-03 17:38:08  INFO: [d0f1fb41] disconnected

You have to update your server.

This is probably because the client application has been updated and is now sending data in a different way. Can you tell me what software is compatible with the old server? Regards.

You can try old version of the client.

Thanks.

Hi Igot im also using and old server whichh traccar cliente did u use to solve the problem I dont want to update yet the server

Hi friend
Traccar client 9.6.3
https://github.com/traccar/traccar-client-android/releases/tag/v6.16
Im installed my server app ~ in 2022, so its close to me. Work fine. Just try this GH post.