Hi,
We have encountered an issue where we are transferring data using our custom service back and forth from the nrf52811 to a remote test device and the radio becomes unresponsive. The test involves the remote device sending data to our service as an ATT_WRITE_REQ, and the nrf52811 responding with more data via ATT_HANDLE_VALUE_IND. These transactions are happening repeatedly during a single connection. Data is being buffered on the nrf52811 in both directions since the transfers are larger than the MTU. The test will continue to connect, request data from the nRF52811 peripheral, then disconnect repeatedly for as long as the devices can hold up.
In the attached trace, the last thing we see is that the nRF82811 send and indication at packet 15052, to which the remote device confirms, then sends an ATT_WRITE_REQ with a portion of the data, but the nRF52811 does not respond to this event with the ATT_WRITE_RESP. It appears that the nRF52811 application is waiting to see the indication confirmation, but it never does and gets stuck there. At this point the radio becomes completely unresponsive. We cannot communicate to it over the air nor via UART to our printer host device.
We are using SDK 16.0.
