Hi, within the last couple of weeks I've started receiving tons of notifications everyday from the Home app, stating that a new device has joined the network.
It appears that although it says this, there are no new devices on the network, but under the devices tab, there are 100+ of offline, unnamed devices... All of which have have different MAC addresses and none of the MAC addresses match up with any known manufacturer prefixes.
I only have 45 devices actually connected via wireless and a couple wired. I have 3 wifi points in addition to the base router.
I've seen some other similar threads, but how many other folks are still experiencing the same thing, and was a proven solution ever identified? This is SUPER ANNOYING.
Known issue, with no fix coming anytime soon, as far as I know.
Could be that you have client devices using MAC randomization as a privacy feature, could be worth checking.
Else you could try to factory reset your network to "clear the stats", and see if it makes a difference.
I should add that the post at https://www.googlenestcommunity.com/t5/Nest-Wifi/Unnamed-Offline-devices-on-Nest-WiFi/m-p/4834 by @Jeff marked as "accepted" solution by none other than @Jeff , yet not in actual fact accepted by anyone else, is complete and utter nonsense. I tried to start a new thread at https://www.googlenestcommunity.com/t5/Nest-Wifi/Unnamed-Offline-devices-on-Nest-WiFi-still-present/... detailing this and reopening the discussion, but @Jeff has of course gone silent; which tells you everything you need to know indeed. Don't expect solutions, they're rather dedicating all their energy toward avoiding responsibility.
I have been having this issue for months. I will randomly get a ton of consecutive notifications "saying A new device has joined the network". Opening the notifications shows a 'blank' device info screen, so it is impossible to track down what these devices that are hopping on and off my network are. This happens sometimes multiple times a day.
This did not occur when I first set up my Google wifi network or when I added and "meshed-in" new Nest wifi devices. It happens whether I am home or not. I have a ton of devices and don't want to go through a reset. I have a feeling there is something to be fixed on their end... Annoying.
Nope definitely not resolved and I too am getting constant multiple bogus notifications. Disabling the notification is not a fix, I want to know when and if an actual new device has joined my network.
@Dsetter2, thanks for reaching out and I'm sorry for this experience. Please make sure that your Google Home app is up-to-date. Reboot your phone and try to observe if the issue happens again. If it does, please file a feedback request using the app by following the steps here.
Keep me posted.