I have just set up a ZeroTier network and added 3 devices which have different network IP addresses internally. However the Physical IP addresses shown in the Admin Screen are all the same.:
the Physical IP addresses shown in the Admin Screen are all the same
If all devices are the behind the same router that does NAT for the Internet access, that’s expected. NAT changes the source address of the outgoing packets to the WAN address of your router, making it seem like all packets are coming from your router directly.