Nest Thermostat not charging

[EVC2022]

I have a 1st generation learning thermostat which worked wonderfully until I upgraded to AT&T’s fiber optic. I don’t know if there is any relationship here, but since then the thermostat won’t (1) stay connected to the wifi and (2) won’t keep its charge. I charged for hours and still nothing. I’m wondering if the device is just incompatible or if there is something else wrong. 

[Patrick_Caezza]

Changing your ISP to AT&T shouldn't cause this to happen.

The 1st Gen Nest Learning Thermostat is extremely old.

Is there a C wire connected?

[aatienza]

Hey there,

Checking in — we hope you've got the answer you're looking for. Let us know if you have more questions in mind.
 

I appreciate the help, Patrick_Caezza.

Thanks,

Archie

[aatienza]

Hi there.

I just wanted to follow up to see if you still need our help. Please let us know as we would be happy to answer any questions you may have. 
 

Thanks,

Archie

[EdwardT]

Hi EVC2022,

I'm just checking in to make sure that you've seen our response. Please let us know if you have any other questions or concerns as I will be locking this in 24 hours.

Thanks,

Edward