Is my Nest thermostat broken?

[WHK]

My Nest learning thermostat repeatedly cannot connect to the wifi. My two (2) other Nest thermostats are connected. I have done multiple reset attempts, and my nest thermostat cannot find the wifi in the house.

I have tried resetting the device, restoring it to factory setting and starting over.

None of these have made a difference. I have checked voltages.  I get a W5 error sometimes. Other times a M15 error. I have tried connecting it through the Nest app and the Google Home app. No luck.  Any advice? 

[NGMB]

I am having the same issue. My google home mini’s are connected and I can use wifi on my phone and tv and computer but my thermostat won’t connect and it won’t even let me past the initial connection screen so I can’t reset it anymore or anything

[WHK]

I can reset my device. In fact, I have several times. My Nest Thermostat searches for wifi but can't find any networks. However, my other 2 Nest Thermostats are connected. 

[NGMB]

At first mine did let me reset it and I did a few times but then I went into something to reconnect it and now it won’t leave the set up and it wont connect to wifi

[Martita34]

I am having the exact same issue.  I have 3 that work and 1 will not connect to same WIFI system (and was working fine for 5 months).  How can I get a replacement?  Apple says I'm outside the return window and impossible to get a person at Nest Google.  The was expensive.  

[NGMB]

If you go into troubleshooting, it has a spot for w5 connection issues, and the bottom of the page it says contact us. Fill out the form and it will ask if you want a call or chat online- I did a call and they contacted me within 5 min. W5 means that the thermostat needs to be replaced

[Martita34]

Sorry where do I find troubleshooting?  Is there a link that goes to call?  How do I know if I have a w5 connection issue?  

[NGMB]

It should tell you on the thermostat if you reset it and it will come up on the Home Screen 

[NGMB]

See my other posts… you need to contact Google. W5 means it needs to be replaced

[Martita34]

OK I restarted and it's saying W3 internet connection.  But it worked fine before.  And it is seeing my networks just not connecting now.  And also it's gone dark entirely and takes a while for me to see the dial.  Something is clearly wrong.