Nest Thermostat gen 3 won't connect to WiFi

[Tom_J]

I installed a new Nest thermostat about 6 months ago. In the last 2 days it has stopped connecting to WiFi. My other Nest thermostat works just fine, has done for years.

I have tried all the recommended steps in the various guides and posts:

Restarted the Nest thermostat - no change

Reset the WiFi settings on the Nest thermostat  - no change

Rebooted my WiFi router  - no change

Moved and reoriented my WiFi router  - no change

Tried connecting to a hotspot, running on my Pixel phone right next to the Nest thermostat  - no change.

The Nest thermostat is unable to find any WiFi network, even though my router is barely 1.5m from the thermostat. Nothing has worked, and I have no control over hot water or heating in that part of my house.

In doing all these tests, I have noticed that the thermostat interface appears to be lagging occasionally. It is showing version 5.9.5-2.

This unit was purchased in the UK. How do I get a replacement for something that is clearly not working?

[Tbrig]

Same issue just started 2 days ago

[SoriaD_]

Hello folks.

Thanks for posting in our Nest Community. I'm happy to help you resolve this disconnection with your Nest Thermostat.

Please let me know if you're seeing any specific error codes on the thermostat display. You can check this by accessing the Settings icon and looking for any messages or codes.

Sharing this information will help me provide more targeted assistance.

Best regards,

Douglas.

[RWeber]

I live in the U.S. and have several Nest Stats (Gen 3) in my home (s) and in one of them, it won't see the Wi-Fi (even though all my other products/appliances will) I have tried restarting/reconfiguring the Nest Gen 3 stat: but it keeps giving me the message: "Error-nest.com/w5," - so... what can be done...randy w.

[SoriaD_]

Hello @RWeber 

Thanks for reaching out to our Nest Community about this W5 message on your Nest thermostat. I apologize for all the inconvenience. I'm here to help you with that.

I completely understand this situation. Let me lend you a hand to find the solution. 
Please fill out this form to forward this case to my support team. We are so happy to assist you.

Feel free to reply to this post when you complete it. We will contact you to continue searching for an answer.

Best regards,
Douglas.
 

[SoriaD_]

Hi @RWeber 

We haven't seen your submission form come through yet. Were you able to access it okay? Let us know if you're running into any trouble or still need our help!
 

Keep me posted.

Best regards,

Douglas.