nrf52833 disconnecting automatically from android app

[madhurubharath]

hi  team,

i am using 1.9.1 SDK  with  vs code  ide. i am using nrf52833  custom board .

observation :

1.while connecting to nrf connect app some times i am able to send and receive a 150 bytes  data correctly without  no error but after 2 to 3  min  automatically its notification disables and disconnects from ble app disconnect reason  (0x80) . to connect again i need to scan again and need to connect again even though  again its disconnecting from android app.

2. i dont know either nrf52833 peripheral disconnecting or mobile app disconnecting .

3.0x80  timeout interval .

thanks in advance.

[madhurubharath]

2. the other abservation is if nrf connect mobile app runs in background board is disconnecting automatically.