Do you have a BT mini hub which works over 4G? This can act as a back up if your fibre service is lost. Could be such a device showing up in your home network?
I’ve found this now on the phone/mobile interface. I couldn’t see it on my iPad or pc. I think you are right this is for when you have a mini hub as part of Stay Connected. I can’t say for sure if it was there before as I usually access the Hub Manager via my iPad or PC. Seems a distinct possibility though that this is new. https://www.ispreview.co.uk/index.php/2020/09/isp-bt-trials-new-kit-to-make-home-broadband-more-reli...
My hub is showing the new 0.24.04 firmware since an update on 17th Dec. Unfortunately, I’m now getting daily pauses of the wifi - seems to drop for a few seconds. Affecting all devices and most noticeable on Sky Q multi room. Anyone had similar? Have rebooted hub several times this week, before I noticed the firmware update. I have a couple of Wifi discs - perhaps I need to reboot them? Annoying as all working well until now.
I also have this issue I believe I have tracked down the problem to the micro filters I was using. I was using sky micro filters, and after changing them to generic ones I hope to of solved the problem.
