NRF54l15 - MAC address changes

[Stark_135]

Hello team,

We are using nrf54l15 platform using NCS 3.02 SDK.

When advertising the MAC address changes in two following conditions

1. After every reset

2. After connect - disconnect.

Kindly guide us on this.

[Turbo J]

Check CONFIG_BT_PRIVACY setting.

[Edvin]

Hello,

What sample are you testing that reproduces this behavior?

And note that the change of BLE address just means that you are using a random static address, that will change in scenarios that you describe. However, I seem to remember that they typically use the same address on every reset, but I may be wrong. 

What sample are you testing on, and I can try to reproduce what you are seeing, and see if this sample uses any special setting that canges the address.

Best regards,

Edvin

[Stark_135]

These are the config in prj.conf

CONFIG_BT=y

CONFIG_LOG=y

CONFIG_BT_SMP=y

CONFIG_BT_SIGNING=y

CONFIG_BT_PERIPHERAL=y

CONFIG_BT_DIS=y

CONFIG_BT_ATT_PREPARE_COUNT=5

CONFIG_BT_PRIVACY=y

CONFIG_BT_DEVICE_NAME="BLE_TEST"

CONFIG_BT_DEVICE_APPEARANCE=833

CONFIG_BT_DEVICE_NAME_DYNAMIC=y

CONFIG_BT_DEVICE_NAME_MAX=65

CONFIG_BT_KEYS_OVERWRITE_OLDEST=y

CONFIG_BT_SETTINGS=y

Observed in ble peripheral example

[Turbo J]

Now read in the documentation what this setting does.