Just very disconcerting, loads of machines turning up when you least expect it!!
Let's keep it friendly all
Been thinking, your neighbour must be on the same phase as you, either L1 L2 & L3, (three-phase, four-wire) & this is repeated all along the street, so you might pick up other neigbours beside the extra one you already have.
True. Probably just unlucky that the house across the road is on the same phase. The nearest house on the same phase on the same side of the road should hopefully be two houses away and out of range.
post deleted.
Could give your private network a subnet of 255.255.255.248, that will limit the number of layer 3 devices to 6 hosts.