Have the NVR set on sensitivity '1", with masking of some bushes that move with the wind, still have recording and email, even with no people or animals present...Any suggestions

is there room and connections in the NVR for 2 hard drives ?

trying to add an external drive, the NVR see's it but initialization fails, any ideas ?

New RLN8-410 NVR, installed the latest firmware from the website, the "FW" field is blank, however the "Build No" field states build 1607050, is this the latest FW ?