Nest Learning Thermostat - WiFi no longer connecting

[MadCo154]

Hi, Like many people I am having the following problem.

My Nest Learning Thermostat is approx 50ft from my router. WiFi connection was solid for about a year and a half. I have both 2.4GHz and 5GHz networks available. Have also tried offering Personal Hotspot connectivity from my phone but the thermostat sees none of them.
I performed a full factory reset and same problem, it won't see any WiFi networks.
I have another identical thermostat installed elsewhere in the house which continues to work fine.
Does not find networks automatically.
Does not connect to networks when information is manually entered.

Errors I've seen:
nest.com/m15
TD0004(3.65)
nest.com/w5

Battery status is fine at 3.838V.
Software version 6.2-27
Model - Display-3.7
Base software version 2.3.51 / 3.1
Model Backplate-5.26

[Lance_L]

Hey MadCo154,

Oh no! I’m sorry to hear that you’re having issues with the Nest Learning Thermostat. Don’t worry; help’s here.

I’d like to dig deeper into this. I need additional information from you that would be best shared privately. I’m sharing a link to a form for you to fill out so we can look into this further. This form is only meant for you to use, so let me know once you’re done.

Best,

Lance

[MadCo154]

Hi Lance. Form completed and submitted.

[Lance_L]

Hello MadCo154,

We got your form — thanks for filling it out. Our team will reach out to you via email to further assist you.

Cheers,

Lance

[MadCo154]

Hi Lance. 3 weeks now I haven't heard from anyone. Wanted to make sure I'm still in the queue to be contacted.

Thanks.

[Jenelyn_O]

Hey there MadCo154,

I'm sorry that it is taking too long. I made a follow-up on your case. Please bear with us. No worries, if you have questions while waiting, we're here to assist. 

I appreciate the help, Lance.

Regards,

Jenelyn