192.168.0.18 Sony TV ac:9b:0a:XX:XX:XX LAN 4 192.168.0.12 Laptop E8:2A:44:XX:XX:XX wl1 Yes, it’s the TV :) After writing this post, I tried going through all interfaces to see if I’d forgotten anything after my factory reset. Only place I found a possible source of a WiFi signal was on the Screen Mirror input interface, which I then turned off. This changed nothing. I then set the IP of the TV to 192.168.0.16. The IP changed in the Kaspersky cloud overview. I then unplugged the ethernet cable from the router. Perhaps not surprisingly, this changed nothing. I then turned off the TV, and unplugged it from the wall socket. This changed nothing, even after allowing time for the condensator to discharge. The only thing the TV was connected to, besides the router, is a Nintendo Switch, via a HDMI cable. Could it have been tunnelling out through that one? The switch was marked as “incomplete” in the ARP table, which I’ve come to learn indicates that it’s offline (Although, I’ve seen the TV marked as “incomplete,” while still seeing an active ‘online’ signal in the 5G network analysis from Kaspersky) . Also, it wasn’t showing up in the Kaspersky “Devices in my Network,” so why would the TV be online via the Switch interface, while the switch is not? At this point, I did a hard reset on the router. This changed nothing. I then had to wait about an hour, because the kid was online, and any further interference with the internet connection would have been very unpopular. But as soon as I could, I restarted the gateway, which promply ensured that I had no connection to the outside world. My WLAN looked fine though, and things came back online with new internal IPs. Not to mention that I was finally rid of the TV. Yesterday, I was away the whole day, but today I just tried plugging the TV back into the router to see what happens. It promply came online, but now I can see it going offline as well when I unplug the ethernet cable, and refresh the Kaspersky interface. So I’m guessing this was some sort of a bug both in the software on both my mobile device and on the laptop? FYI, I’m running a paid version of Kaspersky, installed from the official homepage / google playstore this week, so I should hope that it’s fairly updated. It’s Kaspersky Security Cloud 21.1 on the Laptop. BTW, can anyone tell me if there’s a way to download the logs from a router directly? I’m going crazy wading through 600++ pages of log entries 10 at a time via a browser interface, it’d be really nice to be able to have them in a .txt file. Cheers.