Intermittent TX_TIMEOUT on RAK3172/3272S – No JoinRequest received by ChirpStac

[ELVIS_WINE]

Nothing Change…

11:35:36.244 -> AT+VER=RUI_4.2.1_RAK3172-E
11:35:36.244 -> OK
11:35:46.871 -> AT+APPKEY=C34A6E1556D0A1F2A5DA6B8513C84791
11:35:46.871 -> OK
11:35:50.727 -> OK
11:35:58.418 -> +EVT:JOIN_FAILED_RX_TIMEOUT
11:36:07.090 -> OK
11:36:14.770 -> +EVT:JOIN_FAILED_RX_TIMEOUT
11:36:32.504 -> +EVT:JOIN_FAILED_RX_TIMEOUT
11:36:50.232 -> +EVT:JOIN_FAILED_RX_TIMEOUT
11:36:58.829 -> OK
11:37:06.494 -> +EVT:JOIN_FAILED_RX_TIMEOUT
11:37:24.247 -> +EVT:JOIN_FAILED_RX_TIMEOUT

And here’s another funny thing: now, when I upload the sketch, it gives me an RX error, even though the gateway receives the Join Request and accepts it.

11:41:04.486 -> RAKwireless RUI3 Node
11:41:04.486 -> -----------------------------------------[SETUP] Confirmed enabled
11:41:04.542 -> [SETUP] Retry = 1
11:41:04.640 -> [SETUP] DR = 0
11:41:04.738 -> Current Work Mode: LoRaWAN.
11:41:14.599 -> AT+VER=RUI_4.2.1_RAK3172-E
11:41:14.599 -> OK
11:41:16.884 -> AT+APPKEY=C34A6E1556D0A1F2A5DA6B8513C84791
11:41:16.917 -> OK
11:41:22.227 -> AT+DEVEUI=AC1F09FFFE111264
11:41:22.227 -> OK
11:41:29.246 -> AT+APPEUI=0000000000000000
11:41:29.246 -> OK
11:41:34.721 -> AT+BAND=4
11:41:34.721 -> OK
11:41:39.242 -> OK
11:41:46.910 -> +EVT:JOIN_FAILED_RX_TIMEOUT
11:41:47.074 -> [JOIN-CB] LoRaWan OTAA - join fail! 
11:41:47.074 -> 
11:42:04.655 -> +EVT:JOIN_FAILED_RX_TIMEOUT
11:42:04.752 -> [JOIN-CB] LoRaWan OTAA - join fail!

There any other test I can try? Or could be hw failure?

[beegee (Bernd Giesecke)]

If it works with AT commands, then there is no hardware problem.

Plenty of examples in the RUI3-Best-Practices repo and the BSP itself has as well examples.

[ELVIS_WINE]

No, now even with AT cmd, the join fails in RX.