Showing results for 
Search instead for 
Did you mean: 

BLE server stops adverstising

Senior III

Good afternoon....

I have a known working board with an STM32WB5MMGH6TR (server).  I am using an apk on a google pixel 6a.  The application scans for the device and if not found has a re-scan button that user can hit to try and connect (I am not the writer of the apk).  The issue I am seeing is that there are quite a few times when I power the server up that I cannot get the phone to connect.  It "appears" that the server stops advertising after some period at the front end of the FW operation.


Can someone tell me what I have to do to periodically have the FW send out advertising packets even after a connection is made? (I'm looking for BLE Configuration settings within CubeMX that I may have overlooked or just don't understand and possibly have set incorrectly).....At the moment I have no pairing and CFG_IO_CAPABILITY set to No input, No output.



Senior II

You can use debugging tools such as a BLE sniffer to monitor the advertising behavior and identify any anomalies or errors.

Yes but the question still remains....with respect to firmware / CubeMX / STM32WB55 and BLE in general....Does it stop advertising at some point and if so do you kick it to restart it OR is there some combination of settings in Configuration I should be looking at?

Hello @SWenn.1 

I can't reproduce this on my side. Could you try other devices with our Board. Also, the recommendation of @liaifat85  should really be helpful.

Best Regards.


To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.