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Unable to reconnect Nest thermostat - error code 700999

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Regular Visitor

Unable to reconnect Nest thermostat - error code 700999

I am unable to reconnect my Nest thermostat to my Home service (Nest was deauthorized from the Nest app). I can neither re-sync nor delete the thermostat, either getting blank screens or error code 700999.

 

I'm at the end of my rope, 5 phone calls in with absolutely nobody being able to help.  I feel if I could just disconnect the thermostat in the app (which I can't), I could then reconnect it.  I'm honestly considering discontinuing all my comcast services at this point, because of how infuriatingly frustrating this experience has become.  

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Official Employee

Re: Unable to reconnect Nest thermostat - error code 700999

DSCahan -- 

 

Thanks so much for taking the time to let us know & to provide us with some screenshots.  I've pulled up your account & shared your screenshots with our engineering team to take a look!

 

Thanks, 

 

Rachel

Official Employee

Re: Unable to reconnect Nest thermostat - error code 700999

DSCahan -- 

 

In your first screenshot, are you able to tap the three-dot menu / "..." in the upper right hand corner?  It should open another screen with a button that will allow you to “Disconnect This Account.”  I've attached a screenshot showing this second screen.

 

Thanks, 

 

Rachel

 

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Regular Visitor

Re: Unable to reconnect Nest thermostat - error code 700999

Rachel,

I am able to tap the three dots, but all I get is a blank screen (attached).

Please note, I have - at the instructions of the multiple Comcast support people I've spoken with on the phone over the last week:

1. Reset my Xfinity Gateway

2. Uninstalled my Home app

3. Force stopped, cleared cache, cleared data, uninstalled the Home app again

4. Tried 2. and 3. from my tablet, as well as my phone

5. Attempted to uninstall the thermostat from my Touchscreen

6. Reset my security. Twice

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Official Employee

Re: Unable to reconnect Nest thermostat - error code 700999

DSCahan -- 

 

We've made a change on our end.  Can you please let me know if you are still experiencing this issue?

 

Thanks, 

 

Rachel

Regular Visitor

Re: Unable to reconnect Nest thermostat - error code 700999

It was fixed for about a week, then it wasn't last night, when I had to log in again. Too soon to tell, but *looks* to be fixed again.

Official Employee

Re: Unable to reconnect Nest thermostat - error code 700999

DSCahan -- 

 

Yes, the change we made would have prompted you to log in again.  We believe this should correct the issue going forward, but don't hesitate to reach out if you need anything else!

 

Rachel