nRF52 Connects and immediately disconnects (ContikiNG)

[Esverre]

Hello, I´m using nRF52DK BLE module with ContikiNG and I seem to be having issues when trying to connect with the device using the mac address. I´m trying to setup the basic CoAP demo provided in the examples. The module is advertising perfectly (LED 1 is blinking), but once I try to connect with it (echo "connect 00:AA:BB:XX:YY:ZZ 1" > /sys/kernel/debug/bluetooth/6lowpan_control), it switches to LED 2 (Connected, but for less than a second) and then it goes back to advertising mode (LED 1 blinking). I´m using Ubuntu 19.10. I appreciate a lot any insights on what could be wrong.

I´ve followed the steps for establishing IPv6 connection:

You can see the device is advertising properly:

The problem described comes after I try establishing a connection;

echo "connect 00:E2:40:0E:54:E7 1" > /sys/kernel/debug/bluetooth/6lowpan_control

Connects and immediately disconnects. I have no idea what could be wrong.

[Håkon Alseth]

Hi,

 

Is there any logs on the device side that might show what went wrong?

The sample is outside our scope, and we do not have any knowledge about this specific OS. Have you tried the contikiNG support channels to see if they have any input?

 

Kind regards,

Håkon