RAX120 one 2.4 WiFi device keeps disconnecting then won’t connect again (Any Diagnostics)

OK, thanks for the reply…

Sorry, I’ll try and make it clear…

1: I don’t use the BT Hub anymore, it went back to them. I only mentioned it as it seemed to have more helpful data in its logs than the RAX120.

2: As mentioned, I use Gigaclear and yes the RAX120 is connected directly to the ONT, apologies for not making this clear.

3: My Fridge/Freezer, like a lot of IoT home devices, can only connected to a 2.4GHz SSID using WPA2-Personal [AES].

4: As I mentioned, this device and all other 2.4GHz and 5GHz devices have worked without any changes to the RAX120 for over two years.

When the Fridge/Freezer is booted it connects and works fine with its associated App, Home Connect. This can be used to control certain aspects of the Fridge/Freezer either on my home network or remotely via their servers via the Internet. As I went through below, a couple of weeks ago I noticed that the Fridge/Freezer sometimes disconnects from the RAX120 WiFi and used to reconnect a while later, from minutes to tens of minutes. I know it’s disconnected as the display panel on the Fridge/Freezer loses the WiFi Icon and the App just says it’s Disconnected. I also lose notifications to the App like the Fridge or Freezer door being left open.

In the last few days I noticed this had got progressively worse, in that after a few hours at most of repeatedly disconnecting and reconnecting the Fridge/Freezer would no longer reconnect unless I rebooted it, i.e. turned off the Fridge/Freezer and back on. After a short while of being connected it then started to disconnect and reconnect for a while before no longer connecting.

Reviewing the RAX120 logs there are just entries for when the Fridge/Freezer connects - as mentioned the logs don’t seem to log disconnects or any issues with this device. The RAX120 seems to give a lease for all WiFi connections of around 12 hours…

… I can’t find this to be tuneable?

So going back to old logs I just see a couple of connections for the Fridge/Freezer each day, like all WiFi devices. When the disconnects start for this device I’ve seen over 600 connections in a day. As mentioned, now after a few hours of booting the Fridge/Freezer and the connections/disconnects have gone on for less than a few hours it stops connecting.

As I also mentioned, this issue started on the same day as getting the latest firmware for the RAX120, however, this could be a coincidence. I asked my question initially to see if anyone else had seen anything similar after the latest firmware release…

Without any diagnostics I don’t see how I can work out if it’s the Fridge/Freezer or the RAX120. Obviously, Bosch seem to think it’s the RAX120 or my networks. When connected the signal strength is considered as good as it gets for the Fridge/Freezer. I’d now guess it’s the Bosch plug in WiFi Connect Dongle, but how do I prove it. I’ve now asked them to send me a replacement to test, as it’s a £140 part and the Fridge/Freezer is under an extended 5 year warranty - so far without any reply…

Is there anything else I can feed back to you?