I’d add two quick checks. Put a few feet between the monitor and your Wi-Fi router and set the router to a fixed 2.4 GHz channel (1, 6 or 11) while keeping your phone/tablet on 5 GHz if you can & since nighttime Wi-Fi congestion often causes drops. If it isn’t a Wi-Fi monitor, disable Eco/VOX mode and keep both units plugged in overnight. Also use the original power adapters and short cables, as the IR night vision kicking on can brown out cheap chargers and make the feed cut out.
