Basics Station [CRC Fail] and OTAA join trouble

Issue: Occassional [S00:DEBU] [CRC FAIL] 904.900MHz -11.75/-115.0 SF7/BW125

Setup: RAK2243 PiHat on RPi4B running Xose Perez’s excellent LoRa Basics Station for Docker

Server: The Things Network

Details: I occasionally receive CRC fails in my gateway/docker log, they appear less frequently over time. Is it safe to ignore these warnings?

Right now, I am having trouble with an otaa join, but I think it might be more of an issue with my end node, but not sure how to trouble shoot.

In the log, I see:
2023-02-08 03:41:29.884 [S2E:VERB] RX 905.1MHz DR0 SF10/BW125 snr=-11.8 rssi=-117 xtime=0x34000084B88CFC - jreq MHdr=00 JoinEui=::0 DevEui=4:a30b:f8:9b74 DevNonce=10632 MIC=946454049

2023-02-08 03:41:31.733 [S2E:DEBU] ::1 diid=9230 [ant#0] - next TX start ahead by 3s144ms (03:41:34.877565)

2023-02-08 03:41:34.857 [S2E:VERB] ::1 diid=9230 [ant#0] - starting TX in 19ms860us: 926.9MHz 26.0dBm ant#0(0) DR10 SF10/BW500 frame=20CC6BDFFB3540A6F4B96255…1633FF66 (33 bytes)

2023-02-08 03:41:34.883 [S2E:INFO] TX ::1 diid=9230 [ant#0] - dntxed: 926.9MHz 26.0dBm ant#0(0) DR10 SF10/BW500 frame=20CC6BDFFB3540A6F4B96255…1633FF66 (33 bytes)

2023-02-08 03:41:34.990 [S2E:DEBU] Tx done diid=9230

But at my node which uses an RN2903 to receive the downlink, I get a denied response… does anyone have suggestions on how I can troubleshoot?

Thank you so much for any suggestions!

In case it helps someone else, I found this answer to my question

in the lora basics gthub issues section: Time sync rejected --- · Issue #41 · lorabasics/basicstation · GitHub

I still do not have a explanation for the join otaa failure though.