LoRa Wio e5 stopped trying to join after a while

Products & Technology LoRa
1

Initially flashed the device with a custom code from and it worked fine, the flashed device ran for several days in line power even after multiple power cuts. But one day it stopped trying to join at all. I have used an external RTC to generate alarms to send sensor data to gateway at a particular interval. The sensors, RTC are all initialized successfully and the messages are being printed and then the version of LoRa application versions are also being printed after that then after the device has to try joining i.e MAC Tx done. But I don’t see anything printed after that, the code just stops there for no reason.

[11:09:02.688] DS3231 I2C communication successful
[11:09:02.688] DS3231_SetAlarm1: Successfully set first alarm in DS3231.
[11:09:02.688] DS3231_SetAlarm2: Successfully set second alarm in DS3231.
[11:09:32.669] APPLICATION_VERSION: V1.3.0
[11:09:32.672] MW_LORAWAN_VERSION:  V2.5.0
[11:09:32.672] MW_RADIO_VERSION:    V1.3.0
[11:09:32.672] L2_SPEC_VERSION:     V1.0.3
[11:09:32.672] RP_SPEC_VERSION:     V1-1.0.3
[11:09:32.685] NVM DATA RESTORED
[11:09:32.692] ###### AppKey:      7B:3C:18:12:9A:D3:6F:EF:35:22:3A:CB:F9:7A:37:E6
[11:09:32.733] ###### NwkKey:      7B:3C:18:12:9A:D3:6F:EF:35:22:3A:CB:F9:7A:37:E6
[11:09:32.733] ###### AppSKey:     94:62:7E:D1:E4:62:8A:49:02:C5:44:84:92:FF:3D:53
[11:09:32.733] ###### NwkSKey:     9F:A7:01:19:3B:82:71:0B:2E:8F:9E:68:1C:D2:A5:62
[11:09:32.733] ###### DevEUI:      46:D4:1A:90:EC:00:1D:29
[11:09:32.733] ###### AppEUI:      A0:AD:B7:7E:D6:AC:36:E7
[11:09:32.733] ###### DevAddr:     60:20:11:31```
2

Is LoRaMacJoinRequest() or equivalent returning at all? Have you tried resetting the LoRa NVM context (forcing rejoin)?

3

The program seems to be stuck after this nothing is getting printed at all, no join attempts are made by the device( MAC Tx for join), no requests detected in chirpstack side, but the external RTC interrupts are being generated.