Can't join network, only see Accept join-request

[yadomi]

Hi,

I have a Lopy with Pysense 2.x and I’m trying to connect to TTN. However, I only get the “Accept join-request” in the Live Data tab of TTN Console of my end device.

Here is the code I’ve been using so far:

pycom.heartbeat(False)
pycom.rgbled(0x111100) # Yellow

lora = LoRa(mode=LoRa.LORAWAN, region=LoRa.EU868)

app_eui = ubinascii.unhexlify('1EA96CDF138F07DF')
app_key = ubinascii.unhexlify('4C8EB51FF05C97D8FA49C2C1465AA30F')

print('Joinning')
lora.join(activation=LoRa.OTAA, auth=(app_eui, app_key), timeout=0)

for wait_time in [2,4,6,8,10,12,14]:
    if not lora.has_joined():
        time.sleep(2)
        print("Waited {}s".format(wait_time))

if not lora.has_joined():
  pycom.rgbled(0x110000) # Red
  print("Can't join")
else:
  pycom.rgbled(0x001100) # Green
  print('Joinned !')

It never reach the join part:

Joinning
Waited 2s
Waited 4s
Waited 6s
Waited 8s
Waited 10s
Waited 12s
Waited 14s
Can't join

The DevEUI is correct, I got it from binascii.hexlify(lora.mac(). I’ve also tried by using a generated one from TTN and using it in my code with no success as well.

I’ve also tried using a zero-filled AppEUI with no luck.
My AppKey is correct as well.

I’m in Europe, France and I’ve created my end device with thoses settings:

• Frequency plan: Europe 863-870Mhz (SF9 for RX2 - recommended)
• LoRaWAN version: MAC V1.0.2 as specified here
• Regional Parameters version: PHY 1.0.2 REV A (as specified in the same document above)

I can’t figure what’s not working, since there is no error or message to look for.

[yadomi]

Ok, look like I was just too far from the nearest gateway.

I was able to join and send a message by moving my lopy around with a battery. In the TTN Console it shows an SNR of -5.75 and an RSSI of -113 which confirm that the signal is very weak.

I thought there where more gateways in my area. Might needs to add my own