Hello, every night I am seeing an outgoing traffic in the early hours of the morning when everyone is asleep, how can I know which is the equipment that makes that connection, differentiating it by the amount of traffic compared to the others?
thank you

Try to correlate the spike you see with traffic on other router interfaces (other than WAN). But generally it’s hard to catch it without using some sort of sniffing around.
The problem is that all the equipment is connected via WIFI, so I only have one interface in use NO WAN
In that case … good luck finding the “offender”
Try to turn off smartphone, and they do not do backup on cloud…
Use time of day scheduling, no internet between 0200AM and 0600AM