Hello, The below is an excerpt of a conversation I am having with a friend, I'm sending the initial topic here if anyone has any suggestions I'd appreciate them. The summary I'm getting ready to block one of my home users from accessing *all* internet services here. Using Mac filtering I have already cut off his ps4 and his internet-connected tv it's actually my gfs but when he uses it it won't connect. I know about the inheriant limitations of mac filtering but he doesn't have the technical know-how to get around them, plus I'm going to put a network-wide site block on four specific sites that he goes to so that even if someone else here gives him there mobile or other device like a tablet it won't matter. Basic connectivity is this, AT&T Fiber internet, Orbi mesh system behind that, rbr50 to be specific which is running the latest Netgear firmware. Here it is: "Check me here please. 1. Any device must show up somewhere on the network it can not be a ghost or invisible or it wouldn't be able to receive anything 2. Any device (and this question pertains to my orbi) must show up in some way rather it's unknown or has a hostname or whatever, device must be in a list with it's IP Here's my problem, the one device I want to block (win10 64 bit home unactivated) is not showing up in my orbi connected devices, not as an unknown not as a nothing. Other devices connected via wired connection do even the RPI which is connected in to the same orbi satellite as the target shows and an arp scan from that box can not see it. I've tried arp scans from my machine here, the RPI, nmap, protable windows wireless network scanners, even fing on the phone, nothing is seeing this box, yet it connects to the internet. Ok, so I decided to look for an alternative WiFi or direct means, thinking maybe spectrum was put in and he's going separate, nope, the ethernet cord goes from the back of the target box to the orbi, no wireless addon cards in that box, nothing. I can also say he's not doing a phone tether, one no wireless or bluetooth to do it, 2 he's not that smart, 3 the speeds wouldn't be sufficient enough for streaming let alone gaming. It is driving me insane. Any suggestions welcome." Thanks. Dave.