Scan switches off automatically

[pltv]

We are operating on nRF51822 QFAC with S130 SD. We have a functionality where the device switches between scanning and advertising. Strangely we have observed that after few hours (may be 20 hours or so) the scan functionality gets automatically switched of. Scan is running with an interval of 500ms and scan window of 60ms. We have not been able to re produce this bug so easily, but it does happen rarely and has happened more than once.

Are there any chances that if the battery voltage drops then the scan might abruptly stop?

[run_ar]

Yes, if you are using a coincell battery, there is a risk the voltage will drop to much when this is close to being empty. Rx for 60ms could absolutely cause this. Have you tested this with an external power supply to see if it still happens when power isn't an issue?