RE: nRF9160 DK - Unable to establish connection with nRF Cloud

sunrise shen — Sun, 11 Apr 2021 13:33:20 GMT

Thank you for your help and reply.

I'm very sorry for the delay to reply because I am a little busy recently.

And I finally found why's wrong. It's because I didn't type "nrf-" before my digit IMEI when I downloaded the Device Certificates.

Finally, it's my pleasure to receive your help that guild me in a direction to find my problem.

Best regard,

Sunrise

RE: nRF9160 DK - Unable to establish connection with nRF Cloud

Øyvind — Sun, 21 Mar 2021 12:39:49 GMT

Hello Sunrise,

According to the Asset Tracker documentation:

LED 3 blinking: The device is connecting to the LTE network.

LED 3 ON: The device is connected to the LTE network.

LED 4 blinking: The device is connecting to nRF Connect for Cloud.

LED 3 and LED 4 blinking: The MQTT connection has been established and the user association procedure with nRF Connect for Cloud has been initiated.

LED 4 ON: The device is connected and ready for sensor data transfer.

From the log output, I see you get #define EKEYREVOKED 128 /* Key has been revoked */

2021-03-21T09:33:47.811Z DEBUG modem << [00:00:16.001,373] [0m<dbg> nrf_cloud_transport.nct_mqtt_evt_handler: MQTT_EVT_DISCONNECT: result = -128[0m
2021-03-21T09:33:47.823Z DEBUG modem << [00:00:16.011,383] [0m<dbg> nrf_cloud_fsm.drop_event_handler: Dropping FSM transition 9, current state 1[0m
2021-03-21T09:33:48.331Z DEBUG modem << [00:00:16.521,392] [0m<dbg> nrf_cloud.nrf_cloud_run: Socket error: POLLNVAL[0m
2021-03-21T09:33:48.338Z DEBUG modem << [00:00:16.528,747] [0m<dbg> nrf_cloud.nrf_cloud_run: The cloud socket was unexpectedly closed.[0m
2021-03-21T09:33:48.355Z DEBUG modem << [00:00:16.537,780] [0m<inf> asset_tracker: CLOUD_EVT_DISCONNECTED: 2[0m
2021-03-21T09:33:48.357Z DEBUG modem << [00:00:16.544,494] [0m<inf> asset_tracker: Cloud connection closed.[0m
2021-03-21T09:33:48.360Z DEBUG modem << [00:00:16.551,086] [0m<inf> asset_tracker: This can occur during initial nRF Cloud provisioning.[0m

There seems to be an issue with your certificates. Have you already added the device to nRF Cloud?

Kind regards,
Øyvind