periodic disconnect when nRF52 central

[Mikhail]

Connect establish with smartfone in peripherial mode. SDK13. S132. Periodic I observe disconnect, than 2-3 advertise packet and new connect again. Where can I see what reason of those disconnect? And how to fix it?

[Mikhail]

Do you mean that this bug should just fixed by crutch in nRF? I catched reason.

#define BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION 0x13  /**< Remote User Terminated Connection. */

Does this mean that android sent disconnect?