I am connecting to DM with the following device setting. I think It would be a common setting for Pelion.
“mbed-os-pelion-example” codes with NUCLEO_L475VG_IOT01A + BG96 CELLULAR + hologram roaming usim.
After being connected and registered to DM, then I could see my resource value by clicking a resource ID in the Resource tab of the registered device(endpoint name).
In a normal case, at that time I could see an incoming COAP trace log in the UART console which may represent a subscription for the resource I clicked on the dashboard.
But even though I choose the resource on the dashboard, my console doesn’t show any incoming COAP message from time to time.
In that case I waited for a while but nothing of incoming COAP was showed and the dashboard displayed like “can’t get a value”.
After I reset my device, I could see an incoming COAP message for the resource again and also be updated the value on the dashboard.
This problem intermittently happens also when I unsubscribe the resource and choose another one on the dashboard.
I really have no idea what’s wrong about this.
Any try I could do, welcome.
thank you in advance.