No downlink (observed at OTAA) when gtw_id is missing in uplink

The green icon in the gateway Traffic is actually the Join Accept, which TTN should/will have forwarded to the gateway.

On the very same gateway Traffic page for a The Things Gateway, today, I don’t see an orange icon for the Join Request either. Just like in your screenshots, an orange Activation icon is shown in the application’s and device’s Data page, indeed showing no gtw_id there. (On that page, it also shows the assigned DevAddr, implying that TTN accepted the Join Request, just like in your screenshots above.)

For me, the timestamp for the green icon is about 4 seconds later, perfectly in time for RX1 which is 5 seconds. Also, for me the device actually joins fine, despite indeed not seeing that gtw_id right now. In your screenshots, the timestamps for the orange Join Request Activation and green Join Accept are about the same? Any chance there’s a lot of latency for your gateway? What type of gateway is this?

Also, right now, it seems that on an application’s Data page the gateways array for a Join Request an Activation is always less verbose than the same thing for an uplink.

Join Request Activation on application’s Data page:

  "gateways": [
    {
      "timestamp": 1775046043,
      "time": "2019-12-07T16:03:42Z",
      "channel": 2,
      "rssi": -42,
      "snr": 6.75,
      "rf_chain": 1
    }
  ]

Uplink, for very same application and gateway, on application’s Data page:

  "gateways": [
    {
      "gtw_id": "arjanvanb-gw-1",
      "gtw_trusted": true,
      "timestamp": 1829922075,
      "time": "2019-12-07T16:04:37Z",
      "channel": 0,
      "rssi": -42,
      "snr": 10,
      "rf_chain": 1,
      "latitude": 52.374485,
      "longitude": 4.635738,
      "location_source": "registry"
    }
  ]

I’m sure it’s really the same gateway. I don’t know if those details were ever different than today.

application data

gateway traffic

In case it helps: for a The Things Gateway I often, or always, only get the green icon in the gateway’s Traffic page. But for other gateways I’ve also seen the orange Join Request in their Traffic pages. In all occasions, OTAA does work fine, for me.