nRF9160 failing with nrf_cloud_connect failed: 60 for asset_tracker

[Andrew Lentvorski]

I'm seeing similar problems to others in getting highly unreliable connections to the network.  I *VERY* occasionally get LED3 and LED4 to blink simultaneously, but it's very rare, and generally something times out and the board loses that connection shortly therafter.

This is tested in Southern California from various points roughly from Irvine, CA to San Diego, CA.  This is the home of Qualcomm, so I'm assuming the network isn't the issue...

I can't run any AT commands against the asset_tracker code as it never gets past the nrf_cloud_connect.

Running the at_client code I can do a AT+CGMR and that gives me:

mfw-m1_nrf9160_0.6.8-30.alpha

Any help would be very appreciated.  Thanks.

[Øyvind]

Hi Andrew,

I can't run any AT commands against the asset_tracker code as it never gets past the nrf_cloud_connect.

Running the at_client code I can do and that gives me:

-m1_nrf9160_0.6.8-30.alpha

 

Have you tried to run AT+CFUN? Please load the AT_client application (attached).  at_client_snapshot.hex (Make sure that SW5 is to the right (nRF91). Then run the following:

nrfjprog --program at_client_snapshot.hex --sectorerase -f nrf91 -r --verify

)

The supported AT commands can be found here.

Have you followed the steps from the "Getting Started with nRF9160 DK", i.e. step 4 under LTE Link Monitor?

From the LTE Link Manager please copy and paste the log file from the AT_Client, following the steps from step 4. This information can help us with troubleshooting the problem.

Thank you!

Kind regards,
Oeyvind

[Andrew Lentvorski]

That at_client_snapshot.hex seems to have finally connected, but it's definitely not stable.  I also had to send AT+CFUN=1 several times before it finally "took" and the modem actually started trying to do something.