@joseph-chircop_497308027822318 Thank you very much! Just changed it and expect that it will solve my problem.

@joseph-chircop_497308027822318 Thank you very much! Just changed it and expect that it will solve my problem.

Person, vehicle and pet smart detection are working as I can see from the email subject but how the hell can I simply suppress any motion (only) detection notification emails which flood my mail box on rain or snow?
RLC-823A, newest firmware v3.1.0.989_22051911_v1.0.0.30,
alarm setting 24h set to minimum sensivity (= 1),
only smart detection sensivity of persons, vehicle, cats to about 75,
object sizes set but only relevant for smart detection which has no issues.

RLC-823A was recording with Synology Surveillance Station (currently installed: 9.0.2-10054 on DS420+)
till I updated the firmware of the RLC-823A to v3.1.0.956_22041511_v1.0.0.30.

Deleting and re-adding the camera did not help. I tried with correct IP address, https/443 or http/80, < FW v3.1.0.987_...
and for sure correct user credentials. But the connection tests always reports no connection to (no video stream from) the camera.

I activated http (additionally to https) and tried with http/80 w/o success. Tried with Firmware < or >= v3.1.0.976_22051212_v1.0.0.30 settings.

Is there anybody operting the RLC-823A with the mentioned firmware with Synology Surveillance Station or has any idea what needs to be changed?
Under network settings ONVIF is disabled and cannot be activated (dark grey).