I'm new to Plusnet and trying to setup access on my Hub 2. There's an unknown device and I can't figure out what it is, so I'm trying to add all of my other devices to an "Allowed" group and then I'll block the Default group so that new devices can't get access unless I give it to them. I've managed to add all but 3 of them, but those remaining 3 don't show up in the list when I try to select a device to add!
P.S. I also noticed that often I get a duplicate IP address error when trying to edit a device name or icon, which is really annoying, as most of the time there is no other device with the same IP address that I can see?