Service discovery failing after reseting the central board

[AkashP]

I have configured the nrf52840 DK one board as Peripheral and other as central.

Added multiple services and characteristics. I am sending some data at every 20ms using notify function from the peripheral board.

Central is discovering services and characteristics during first time. If reset central board, service discovery is failing and shown as below.

Observed one thing is, if we do not send data using notify, then service discovery will pass even after central board reset.

If reset peripheral board during sending data using notify, then no issue and service discovery working in central board.

Please help to resolve the issue.

SDK: nrfconnect sdk V2.6.0

[Vidar Berg]

Hello,

It's a bit difficult to say why it may be failing without seeing any code, but are you starting the discovery from multiple places? The returned error code is -EALREADY (-120), which indicates that the procedure is already in progress.

DM start is returning with -ENOMEM.

Best regards,

Vidar

[AkashP]

I am calling discovery function from one place only after all connection parameters exchanged. Do need to call any function in the main loop to clear gatt discovery function?.

I will try to share required code details in sometime if above details not sufficient.

[Vidar Berg]

Thanks for confirming. Yes, please provide relevant code here or in a private ticket. I don't reckognize the discovery messages printed by your app.