Follow troubleshooting guide.
Thank you @Anton
@Anton, please help me
Logs:
2018-08-07 17:57:26 DEBUG: [8b1b9ea9: 5064 < 23.239.65.163] HEX: 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
2018-08-07 17:57:26 WARN: [8b1b9ea9] error - org.apache.commons.codec.DecoderException: Odd number of characters. - RuntimeException (DataConverter:31 < EelinkProtocolEncoder:50 < EelinkProtocolDecoder:66 < ...)
2018-08-07 17:57:41 DEBUG: [8b1b9ea9: 5064 < 23.239.65.163] HEX: 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
ALL Confused after seeing this
That's obviously not from your device. Port is 5064.
I have added 02 GT06 devices and set them up correctly to send information to the server on port 5023, however, none is sending or are they sending and traccar not showing them up? port 5023 is open and listening when I check on netstat. when I try on demo server at demo4.traccar.org they work perfectly