Traccar 6.14 → not working
Protocol: Navtelecom
Tracker disconnects immediately and no positions are received.
Traccar 6.12 log (working)
2026-06-04 09:46:28 INFO: [Tf6ba7e73: navtelecom > 176.15.200.25] 7e410857
...
2026-06-04 09:46:30 INFO: [Tf6ba7e73] id: 866795037488978, time: 2026-06-04 09:36:22, lat: 53.35668, lon: 83.66295
...
Positions are decoded successfully.
Traccar 6.14 log (not working)
2026-06-04 09:44:09 INFO: [T1839fece] connected
2026-06-04 09:44:09 INFO: [T1839fece: maxpb < 176.15.204.5] 404e54430000000000000000130048422a3e533a383636373935303337343838393738
2026-06-04 09:44:09 WARN: [T1839fece] error - readerIndex(6) + length(2) exceeds writerIndex(6)
...
2026-06-04 09:44:09 INFO: [T1839fece] disconnected
The connection is detected as maxpb instead of navtelecom and then fails with:
IndexOutOfBoundsException
MaxPbProtocolDecoder:98
The same tracker, configuration and port work correctly on Traccar 6.12.
The issue appears immediately after upgrading to 6.14.
You should be using Navis protocol going forward.
Traccar 6.14 → not working
Protocol: Navtelecom
Tracker disconnects immediately and no positions are received.
Traccar 6.12 log (working)
Positions are decoded successfully.
Traccar 6.14 log (not working)
The connection is detected as maxpb instead of navtelecom and then fails with:
The same tracker, configuration and port work correctly on Traccar 6.12.
The issue appears immediately after upgrading to 6.14.