BLE disconnection: cif=3 connected=0 conn_id=3 reason=0x0013

[tharunjoy]

Hi,

I am trying to build an ESP32 as a BLE GATT client to receive a connection from BLE remote(ATB110x). While trying to connect to the device I am immediately disconnecting from the server.

Code: Select all

 
W (23898) BT_APPL: bta_gattc_conn_cback() - cif=4 connected=0 conn_id=4 reason=0x0013
I (23908) GATT_CLIENT :::: EVT 41, gattc if 3
I (23908) GATT_CLIENT :::: ESP_GATTC_DISCONNECT_EVT, reason = 0x13

0x13 defines : Remote User Terminated Connection

I have connected this remote to android devices and It was connecting without any issue. What am I missing in esp client side? How should I address it?

[tharunjoy]

Hi,
I am adding more logs to this.

Code: Select all

 Unhandled GAP event: 14
D (13167) BT_GATT: GATT   ATT protocol channel with BDA: 000XXXXXXX16 is disconnected
D (13167) BT_GATT: gatt_is_bda_in_the_srv_chg_clt_list :00-0b-20-07-05-16
D (13177) BT_GATT: gatt_cleanup_upon_disc 
D (13177) BT_GATT: found p_tcb 
D (13177) BT_GATT: gatt_set_ch_state: old=4 new=0
D (13187) BT_GATT: gatt_free_pending_ind
D (13187) BT_GATT: gatt_free_pending_enc_queue
D (13197) BT_GATT: gatt_free_pending_prepare_write_queue
D (13197) BT_GATT: found p_reg tcb_idx=0 gatt_if=1  conn_id=0x1
D (13207) BT_GATT: gatt_connect_cback: from 000XXXXXXXX16 connected:0 conn_id=1 reason = 0x0013
D (13217) BT_GATT: gatt_get_ch_state: ch_state=0
I (13217) BT_GATT: GATT_GetConnIdIfConnected status=0

D (13227) BT_GATT: found p_reg tcb_idx=0 gatt_if=2  conn_id=0x2
D (13237) BT_GATT: found p_reg tcb_idx=0 gatt_if=3  conn_id=0x3
W (13237) BT_APPL: bta_gattc_conn_cback() - cif=3 connected=0 conn_id=3 reason=0x0013
D (13247) BT_GATT: found p_reg tcb_idx=0 gatt_if=4  conn_id=0x4
W (13257) BT_APPL: bta_gattc_conn_cback() - cif=4 connected=0 conn_id=4 reason=0x0013
D (13257) BT_GATT: gatt_delete_dev_from_srv_chg_clt_list
D (13267) BT_GATT: gatt_is_bda_in_the_srv_chg_clt_list :00-0X-XX-XX-XX-16
D (13277) BT_GATT: ATT disconnected
I (13277) GATT_CLIENT :::: EVT 41, gattc if 3
I (13277) GATT_CLIENT :::: ESP_GATTC_DISCONNECT_EVT, reason = 0x13
I (13287) GATT_CLIENT :::: EVT 5, gattc if 3
Unhandled GATT Profile Event: 5
I (13297) GATT_CLIENT :::: EVT 41, gattc if 4
I (13297) GATT_CLIENT :::: ESP_GATTC_DISCONNECT_EVT, reason = 0x13
I (13307) GATT_CLIENT :::: EVT 5, gattc if 4
Unhandled GATT Profile Event: 5
I (24247) WEBSOCKET :::: Connection error
-- Connection error: 113
I (24247) WEBSOCKET :::: Disconnected

Why I am getting this error? Could anyone help me to resolve this?
Thanks in advance.

[tharunjoy]

Hi,
I have to add one more analysis to this.

'ESP IDF is getting disconnected when the peripheral device stops advertising'.

How to stabilize the connection even after the advertisement stops?

[chegewara]

Based on your earlier description I thought it may be problem with connection parameters update, which device may not accept and disconnecting.

After reading your last update I am starting to think you are trying to connect esp32 and android device at the same time to peripheral that can use/handle only 1 connection.

[tharunjoy]

Hi @chegewara ,

'ESP IDF is getting disconnected when the peripheral device stops advertising'.

I found this based on one of my analyses on ble server(remote) disconnection from ble client(esp32).

Before I was worried about my server configuration, so in-order to replicate another ble server I downloaded an android app https://play.google.com/store/apps/deta ... eral&hl=en. Using this app I was able to simulate a battery(ble server) and connect to ble client(esp32). I was able to connect and read the value from this app until I stop advertising the app(App Screen off will stop advertising). After I am getting the same error that I used to get when I tried to connect to the remote, where the remote use stop advertising when get connected.

Based on your earlier description I thought it may be problem with connection parameters update, which device may not accept and disconnecting.

I am attaching the code here. Please let me know if I am doing something wrong.

[tharunjoy]

The issue was with the server device as per the reason=0x0013:: ESP_GATT_CONN_TERMINATE_PEER_USER
Reconfigured the BLE_GATT_Server device and the issue was resolved.

[bhaskarr]

Hi Tharun,

I am facing the same issue, could you please elaborate how you reconfigured the server. Thanks in advance.

com.android.bluetooth D/bt_btm_pm: btm_pm_proc_mode_change switched from SNIFF to ACTIVE.
com.android.bluetooth E/rtk_parse: hci_interface->transmit_command Opcode:fc19
com.android.bluetooth W/bt_btif: bta_gattc_conn_cback() - cif=3 connected=0 conn_id=3 reason=0x0013
com.android.bluetooth W/bt_btif: bta_gattc_conn_cback() - cif=4 connected=0 conn_id=4 reason=0x0013
/com.android.bluetooth W/bt_btif: bta_gattc_conn_cback() - cif=5 connected=0 conn_id=5 reason=0x0013
com.android.bluetooth W/bt_btif: bta_dm_act no entry for connected service cbs
com.android.bluetooth D/BtGatt.GattService: onConnected() connId=6, address=9C:6B:72:59:42:E8, connected=false

[adrian-fratila]

Hi tharunjoy, I experience the same kind of problem as you describe above: disconnection of an ESP32 client from a ATB110x BLE remote after a couple of seconds.
How did you get the issue fixed?
Thank you!