Join Request Times and Error Messages

Hello RAK Support

We are using the RAK3172 in Region EU868 (with host processor) with our own LoRa Network Server and sometimes get the errors highlighted below. On each transmit the DR is modified , therefore the +EVT:JOINED is slower.

The JOIN_ACCEPT_DELAY1 and JOIN_ACCEPT_DELAY2 have not been modified from their default

Is it recommended to modify the JOIN_ACCEPT_DELAY1 and JOIN_ACCEPT_DELAY2 to accommodate different Data Rates

(08:38:29.411) (0.111) RAKwireless RAK3172
(08:38:29.411) (0.000) ------------------------------------------------------
(08:38:29.531) (0.120) Version: RUI_4.0.5_RAK3172-E
(08:38:29.531) (0.000) Current Work Mode: LoRaWAN.

(08:38:34.464) (0.094) AT+DR=5
(08:38:34.464) (0.000) AT+JOIN=1:0:7:0
(08:38:39.582) (5.117) +EVT:JOINED //5.117 seconds

(08:38:49.555) (9.973) AT+DR=4
(08:38:49.649) (0.094) AT+JOIN=1:0:7:0
(08:38:54.880) (5.230) +EVT:JOINED //5.230 seconds

(08:39:04.709) (9.828) AT+DR=3
(08:39:04.807) (0.098) AT+JOIN=1:0:7:0
(08:39:10.255) (5.447) +EVT:JOINED //5.447 seconds

(08:39:19.864) (9.608) AT+DR=2
(08:39:19.980) (0.116) AT+JOIN=1:0:7:0
(08:39:26.523) (6.542) +EVT:JOIN_FAILED_RX_TIMEOUT //6.542 seconds

(08:39:35.017) (8.493) AT+DR=1
(08:39:35.116) (0.098) AT+JOIN=1:0:7:0
(08:39:42.031) (6.914) +EVT:JOINED //6.914 seconds

(08:39:50.173) (8.142) AT+DR=0
(08:39:50.276) (0.103) AT+JOIN=1:0:7:0
(08:39:58.796) (8.519) +EVT:JOIN_FAILED_6 //8.519 seconds

(08:44:38.153) (6.545) AT+DR=5
(08:44:38.278) (0.124) AT+JOIN=1:0:7:0
(08:44:43.357) (5.078) +EVT:JOINED //5.078 seconds

(08:44:53.311) (9.953) AT+DR=4
(08:44:53.428) (0.116) AT+JOIN=1:0:7:0
(08:44:58.635) (5.207) +EVT:JOINED //5.207 seconds

(08:45:08.469) (9.833) AT+DR=3
(08:45:08.627) (0.158) AT+JOIN=1:0:7:0
(08:45:14.015) (5.388) +EVT:JOINED //5.388 seconds

(08:45:23.626) (9.611) AT+DR=2
(08:45:23.734) (0.107) AT+JOIN=1:0:7:0
(08:45:29.572) (5.838) +EVT:JOINED //5.838 seconds

(08:45:38.787) (9.215) AT+DR=1
(08:45:38.912) (0.125) AT+JOIN=1:0:7:0
(08:45:45.802) (6.889) +EVT:JOINED //6.889 seconds

(08:45:53.944) (8.141) AT+DR=0
(08:45:54.041) (0.097) AT+JOIN=1:0:7:0
(08:46:02.556) (8.514) +EVT:JOINED //8.514 seconds

Thank You

Paul

Hello Paul,
If required, you can adjust the delays with AT+JN1DL and AT+JNDL2 commands.