Hi,
We tried to use Connect Interval 7.5ms with MTU 88B, both central and peripheral role are 52832, but observed disconnection after 30 sec.
Disconnection reason is 0x13 (Remote User Terminated Connection) and central side log as below, do you have any suggestion for disconnection issue?
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0> <info> app: Start scanning for device 0> <info> app: Connection 0x1 established, starting DB discovery. 0> <info> app: [ConnInterval: (6, 6)] [slave_latency 0][conn_sup_timeout 500] 0> <info> app: data_len=0 0> <info> app: DLE_enable:0 0> <info> app: Start scanning for device 0> <info> app: BLE_GATTS_EVT_EXCHANGE_MTU_REQUEST 0> <info> app: BLE_GATTC_EVT_EXCHANGE_MTU_RSP 0> <info> app: Current MTU: 88 0> 0> <info> app: call to ble_lbs_on_db_disc_evt for [instance 1 and link 0x1!] [CharCount 3] 0> <info> ble_lbs_c: characteristic.uuid.uuid [index 0][value 0x1524][handle_value 0x11][cccd_handle 0x12] 0> <info> ble_lbs_c: characteristic.uuid.uuid [index 1][value 0x1526][handle_value 0x14][cccd_handle 0x15] 0> <info> ble_lbs_c: characteristic.uuid.uuid [index 2][value 0x1525][handle_value 0x17][cccd_handle 0x0] 0> <info> app: LED Button Service discovered on conn_handle 0x1 0> <info> ble_lbs_c: Configuring CCCD. CCCD Handle = 0x12, Connection Handle = 1 0> <info> ble_lbs_c: Configuring CCCD. CCCD Handle = 0x15, Connection Handle = 1 0> <info> ble_lbs_c: Configuring CCCD. CCCD Handle = 0x17, Connection Handle = 1 0> <info> app: call to ble_lbs_on_db_disc_evt for [instance 1 and link 0x1!] [CharCount 0] 0> <info> ble_lbs_c: on_hvx [button2_handle: len 2] 0> <info> app: -> Link 0x1, Button2 state changed on peer to 0x57 0x53 0> <info> ble_lbs_c: Configuring CCCD. CCCD Handle = 0x12, Connection Handle = 1 0> <info> app: handle_payload (len 2)(data 57 53] 0> <info> app: 0> <info> app: clear_drop_record_due_to_disconnect assign start_ts = 46580974 -> 76659507 0> <info> app: Disconnected. 0> <info> app: LBS central link 0x1 disconnected (reason: 0x13) 0> <info> app: Start scanning for device 0> <info> app: Connection 0x1 established, starting DB discovery. 0> <info> app: [ConnInterval: (6, 6)] [slave_latency 0][conn_sup_timeout 500] 0> <info> app: data_len=0 0> <info> app: DLE_enable:0 0> <info> app: Start scanning for device 0> <info> app: BLE_GATTS_EVT_EXCHANGE_MTU_REQUEST 0> <info> app: BLE_GATTC_EVT_EXCHANGE_MTU_RSP 0> <info> app: Current MTU: 88
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