STM32WB55 randomly stops responding to Mobile App's Empty PDU.

[FLast.4]

Scenario:

Able to connect the STM32WB55 as Peripheral/Slave to Master (mobile phone). Communication is mostly solid between these devices, however, during periods of inactivity, the STM32WB55 randomly stops responding to the Master's empty PDU and reverts back to Advertising.

Notes:

The Max/Min Connection Interval is set as 50 and 100ms via PPCP.

Slave Latency and Supervisor Timeout are set to 0 and 1 second respectively via PPCP.

The BLE Core Events Handler reports nothing unusual during this event.

Thanks in advance for any insight you may be able to provide.

[oguzhansisman]

Is there any update? How did you solve your issue. I have same issue. We set our timeout 4 sec. Sometimes MCU can send empty pdu within 4 sec and no issue, but sometimes it takes longer and whenever it reach about 4 sec connection is geeting lost.