nrf_ble_scan_on_adv_report() never called

[prodey]

Hi,
I am using the UART Client and UART Peripheral example codes on 2 custom boards that have BL652 with NRF52832 with SDK 15.3.0. The Peripheral code seems to work perfect in isolation and I am able to connect and send data to the device using NRF Connect with an Android phone. However, with the Peripheral ON, when I load the client code on another board and try to debug, it takes several minutes to get a first hit on nrf_ble_scan_on_adv_report() after which, the function just drops out without passing adv_uuid_compare(). 

So, it seems that the central dies not receive any advertising data. I am using the default configuration from sdkConfig.h for both. 

Please suggest.

[prodey]

Hello,

I finally established the root cause. This turned out to be antenna related issue. For some reason, the internal antenna on the BL652 device that we are using is not working reliably. I mounted a flag-type antenna on both central and peripheral and after that, I can successfully communicate using our boards on both ends. 
Thanks for the suggestions.

[run_ar]

Thank you for the update. Glad to hear you found the cause.