Is there any regulation to adjust
#define KEEP_ALIVE_MILLIS 60000
as I have connected system using GSM and after while it got this message
04:06:04.619 -> [_SOCKET] Using secure TLS/SSL connection: no
04:06:05.366 -> [_SOCKET] Connected!
04:06:05.366 -> [THINGER] Authenticating. User: XXXX Device: mmm
04:06:05.366 -> [THINGER] Writing bytes: 33 [OK]
04:06:05.840 -> [THINGER] Authenticated
even no thing changed and network coverage is fine , power supply to module is 4.2v and system is working well, only resetting the connection and Zeroing online time.