Hello,
We recently bought a washing machine and it connected to the Nest WiFi for at least two weeks. But a few days ago I noticed that it wasn’t connecting to the Nest WiFi anymore. I tried to reconnect it to the same WiFi but it wasn’t coming up on the list anymore. Although, I was able to connect the washing machine to an old BT router.
Can anyone please help me?
The washing machine is: SAMSUNG Series 5+ AddWash WW90T554DAW/S1
I don’t know if this can help:
Tagging @SamsungZell
Hey there! @PumpkenPie, Welcome to the Community! 
,I’d be happy to take a look into your concerns.
For your specific model, is the Display’s Wi-Fi indicator showing illuminated? Additionally, have you ensured that your washing machine is connected to a 2.4 GHz band network?
If the symptom persists after trying to turn on and connect to Wi-Fi Network, you could also attempt a Factory reset which will turn the Washer’s Wi-Fi off, allowing for you to reconfigure the Wi-Fi settings.
Keep me posted on your outcome!
I hope this message finds you well!
^SamsungZell
Hi @SamsungZell, Thank you for your response!
I have just performed a Factory Reset on the washing machine and tried to connect it to the WiFi again. Although the problem is still there.
The WiFi I am trying to connect the washer to is “SALONGCONG.HOME” (Nest WiFi) which can be seen here:
I can’t tell if the washing machine is connecting to the 2.4 GHz band on the main network as it is combined with the 5 GHz band and Nest WiFi does not let me separate the two:
I can confirm that the WiFi on the washing machine is functional as I am able to connect it to “SALONGCONG.HOME-Test” (old BT router which is connected to the Nest WiFi):
I don’t know if it’ll help but here is additional information about the Test network:
Sorry for the spam, It won’t let me post all attachments in one post.
Thank you for providing that information, I completely understand your frustration with it connecting previously and now not showing as an available option. If restarting the router doesn’t allow your Nest Wifi to populate in the available networks, I would recommend reaching out and creating a support ticket with the Product Support team in your area for further assistance with looking into your concerns using the below information as your device is an international model:
UK support 0333 0000333
UK: support@smartthings.co.uk
I hope this message finds you well!
^SamsungZell
Thank your for your response @SamsungZell
I will try to contact the Product Support.
Hello @PumpkenPie, I wanted to say that I’m also using Nest WiFi. Disabling WPA3 in the Google Home App (WiFi Settings) might be what you need to do.
That worked for me, but I then decided that it was more important to have high security than connect my machine to SmartThings.
This is disappointing, as WPA3 has been available for years now, with devices being certified as early as June 2018.
Hi @mrmckeb, I found out that having WPA3 enabled was the reason why my washing machine was not connecting to WiFi 4 months ago. I just forgot to update this page.
It was disappointing that I had to disable WPA3 but you can fix that by reconnecting the washing machine with WPA2 (by disabling WPA3). Once it connected, I enabled WPA3 again. Hadn’t had an issue since December 
Great, I did the same thing and it worked for me too - I guess I just never tried again after re-enabling WPA3 - thanks for sharing!
