Thanks i found a temporaly solution.
Change in RFM95.h this ligne

#define RFM95_RETRY_TIMEOUT_MS			(500ul)			//!< Timeout for ACK, adjustments needed if modem configuration changed (air time different)

by

#define RFM95_RETRY_TIMEOUT_MS			(5000ul)			//!< Timeout for ACK, adjustments needed if modem configuration changed (air time different)

and change in Mytransport.h

#define MY_TRANSPORT_STATE_TIMEOUT_MS			(2*1000ul)		//!< general state timeout (in ms)

by

#define MY_TRANSPORT_STATE_TIMEOUT_MS			(30*1000ul)		//!< 2 changed to RFM95W Ultra long Range enable general state timeout (in ms)

and it work fine.

Hello @lafleur !
What do you use as antenna?

Thanks i found a temporaly solution.
Change in RFM95.h this ligne

#define RFM95_RETRY_TIMEOUT_MS			(500ul)			//!< Timeout for ACK, adjustments needed if modem configuration changed (air time different)

by

#define RFM95_RETRY_TIMEOUT_MS			(5000ul)			//!< Timeout for ACK, adjustments needed if modem configuration changed (air time different)

and change in Mytransport.h

#define MY_TRANSPORT_STATE_TIMEOUT_MS			(2*1000ul)		//!< general state timeout (in ms)

by

#define MY_TRANSPORT_STATE_TIMEOUT_MS			(30*1000ul)		//!< 2 changed to RFM95W Ultra long Range enable general state timeout (in ms)

and it work fine.

Hello ,
define MY_RFM95_MODEM_CONFIGRUATION is ok?
Beacause i test with #define MY_RFM95_MODEM_CONFIGRUATION RFM95_BW125CR48SF4096
and RFM95_BW31_25CR48SF512.
I do this in Gateway and node but does'nt work.
I precise communication work verry well with RFM95_BW125CR45SF128.

0 MCO:BGN:INIT NODE,CP=RLNNA--,VER=2.1.0
4 TSM:INIT
4 TSF:WUR:MS=0
6 RFM95:INIT
18 RFM95:PTX:LEVEL=13
20 TSM:INIT:TSP OK
22 TSM:INIT:STATID=12
24 TSF:SID:OK,ID=12
26 TSM:FPAR
28 RFM95:SWR:SEND TO=255,RETRY=0
3055 TSF:MSG:SEND,12-12-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
5064 !TSM:FPAR:NO REPLY
5066 TSM:FPAR
5068 RFM95:SWR:SEND TO=255,RETRY=0
5193 TSF:MSG:SEND,12-12-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
7202 !TSM:FPAR:NO REPLY
7204 TSM:FPAR
7206 RFM95:SWR:SEND TO=255,RETRY=0
10233 TSF:MSG:SEND,12-12-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
12244 !TSM:FPAR:NO REPLY
12247 TSM:FPAR
12249 RFM95:SWR:SEND TO=255,RETRY=0
15278 TSF:MSG:SEND,12-12-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
17287 !TSM:FPAR:FAIL
17289 TSM:FAIL:CNT=1
17291 TSM:FAIL:PDT```