Navtelecom trackers stopped connecting after upgrade from 6.12 to 6.14

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.

https://github.com/traccar/traccar/commit/afcfab29ea75bf68617fc66a146bedd143889569

You should be using Navis protocol going forward.

Thank you!