Thermostat offline after working perfectly for 6 months

[cez]

Hi! I got a Nest thermostat 3 months ago (still 6 months warranty left), and it's gone offline. Nothing has changed; it just stopped connecting to the Wi-Fi suddenly. I have tried ALL the troubleshooting, even factory resetting it, and still no internet connectivity. When trying to file a warranty claim, the website to fill out the form "does not exist". Does anyone have any advice? I really appreciate any help you can provide, especially because the device is still under warranty.
Additional info: 
Battery 3.892v Vin 35.07v VUSB 35.07v Lin 200mA
Error: nest.com/w5

edit: month purchased

[cez]

My bad, this item was purchased 3 months ago, May of this year.

[MplsCustomer]

@cez 

Since the warranty form is failing (others have reported that) you could try contacting Google Nest Support to determine whether your thermostat is defective:

1. Go to https://support.google.com/googlenest/gethelp.
2. Select a category/product family, and type in a brief description of the issue, then click "Next".
3. Select your device from the dropdown, click "Other", then click "Next step".
4. Under "Resources", just click "Next step". (Clicking one of the listed links will bring up a Help page.)
5. Under "Contact options", choose to get a phone call or chat with the team, depending on availability in your country.

[cez]

Thanks! It was a little frustrating not being able to reach the form! cheers!

[cez]

Thanks again for your suggestion. After reaching out to the support group and chatting with them via Facebook messenger, I was redirected to a form so that the support team could reach out to me via email. However, this morning, I got an oddly-worded email with a somewhat rude tone that did not mention at all the thermostat issue and included a suspicious "link" to another customer support form. Do you have any advice on what to do? I believe this was very inappropriate and would like other users to be aware of this. I just want to make the warranty on my thermostat valid, but I'm afraid to open up or reply to the email I got this morning. Should I mention this in the Facebook chat with the support team? Thanks again for all your help!

[MplsCustomer]

@cez 

I'm just another Google Nest customer, and have know knowledge at all about the response you received from Google Nest Support via Facebook messenger.  I've only ever communicated with then via chat or by phone.