Link Layer Packet Re-Transmission

[Manieldyers]

I have a service and characteristic that is Notifying data at a rate of ~160 kbps.

Both our custom app and the nRF Connect app appear to be receiving the same packet over and over after some point.

The connection does not drop.

I believe with BLE packet transmission should be guaranteed if the connection is maintained. If we are receiving the same packet over and over could that be the Link Layer re-transmitting the same packet?

If so, how can we recover from that? I would expect the nRF Connect app to be able to recover even if our custom app cannot.

[Turbo J]

Not impossible but rather unlikely. I'd look for bugs in application code first.

Try to replicate the problem with a simple program on DK hardware. Could help you to either find the bug in your app or to make a proper bug report here.