Not able to join if EEPROM has some data

[clavisound]

If EEPROM has data (from another network?) device can't proceed to join.

LNS is accepting the JR (Join Request), sends JA (Join Accept) but the device does not joins. Problem corrected after I erased the EEPROM.

[clavisound]

Problem must be with wrong procedure of erase of join.

SlimLoRa/examples/SlimLoRa-eeprom__read_by_user_keyboard/SlimLoRa-eeprom__read_by_user_keyboard.ino

Line 73 in 31eba1e

if (inByte == 'k') { lora.SetHasJoined(false); menuPrinted = 0; break; }

I have to also erase the joinNonce and devNonce.

[pe1mew]

I solved this problem with a helper function in the application. Its a workaround for when you need it:

void clearLoRaSession(void) {
    // Write 0xFF to all SlimLoRa EEPROM locations to force rejoin
    for (uint8_t addr = 0; addr <= EEPROM_END; addr++) {
        EEPROM.write(addr + EEPROM_OFFSET, 0xFF);
    }
}

[clavisound]

Thanks for sharing.

I forgot to mention here that you can erase EEPROM with the utility in the examples folder: https://github.com/clavisound/SlimLoRa/tree/master/examples/SlimLoRa-eeprom__read_by_user_keyboard

You can erase ALL the EEPROM, or only the session.

Today I encountered more strange bug. I erased the session like you did, but I have MIC mismatch on the LNS. I can't understand the reason.

[clavisound]

In my case I had MIC mismatch because I had wrong keys 🔑

But I think I found another bug. Currently fixing / investigating. 🔍