BLE disconnect reason 0x0013

[datluong]

Dear all,
I have developed a application based on esp idf version 3.1.2. My device is espressif esp32 - wroom - 32.
When I connect to the device, it works fine, but some how after 1 or 2 minute, it automatically disconnect with the following log:
BT_APPL: bta_gattc_conn_cback() - cif=3 connected=0 conn_id=3 reason 0x0013.
I dont know what the reason 0x0013 means and how ti fix this issue? I want it to be connected with the phone and only disconnect when the phone send disconnect signal, esp32 send disconnect signal to the phone or out of range.
Thank you for your time.
Best regards.

[chegewara]

https://github.com/chegewara/esp32-ble-wiki/issues/5

[datluong]

Thank you very much