Debugging

comm.protocol errors

The following codes appear as [comm.protocol] ERROR in the USB debug logs, and also as the code in device.cloud.connection.error in Device Vitals.

Dec 17 01:36:22 [comm.protocol] ERROR: Event loop error 1
Dec 17 01:36:42 [comm.protocol.handshake] ERROR: Handshake failed: 25
Dec 17 01:37:53 [comm.protocol.handshake] ERROR: Handshake failed: 25
Dec 17 01:38:16 [comm.protocol.handshake] ERROR: Handshake failed: 26
Dec 17 01:39:54 [comm.protocol] ERROR: Event loop error 1
Dec 17 01:41:37 [comm.protocol] ERROR: Handshake: could not receive HELLO response 10

The system includes a number of logging statements if it is having trouble connecting to the cloud. These errors are defined in the Device OS source in protocol_defs.h.