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How to set up a second Nest Protect when the first is not responding due to distance 2 Recommended Answers 19 Replies 3 Upvotes
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Last edited 6/25/19
I run a secure wi-fi LAN.  First Protect sets up fine. Enter the password and away we go.  But trying to add a second Nest protect, it hangs trying to communicate with the first Nest Protect...which is not within Weave range.  So how do I set-up the second Protect ?
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We installed wired ones but were still able to run them on the backup batteries in order to connect them. Ours was a little stubborn as I recall it took quite a few attempts. 
Last edited 6/25/19
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Thank you for your reply but it has absolutely no relevance to the problem.

I suspect that, like the very flakey Home/Away function on the Nest Camera, that the Nest design engineers have failed to consider 'What If?'.  

Because it is a secure Wi-Fi network, the second Protect needs to provide the wi-fi password in order to connect.  But the Nest design engineers decided that before the second one can get to the point of accessing the secure wi-fi network, it has to communicate (using Weave perhaps) with the first one ...'to make setup easy'.  (pause for hollow laugh).

But if, due to distance between the devices, Weave won't work then the Nest Design engineers failed to consider this possibility and have provided no 'get out' to set-up a different way.  The second Net Protect fails with the only option 'Try Again'.  Duh !
Last edited 6/25/19
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Indeed, the manual does say "Be sure to keep all your Nest Protects together until they're all set up and ready to be installed". Even then I recall the second one took a number of attempts. 
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No I'm afraid not.  I did anticipate this suggestion and moved the second Protect to within 3 ft of the first one.  This time, there is more progress in that I'm prompted to hit the button on the first Protect and the light ring will go blue (it does).  It then tells me it is trying to connect to the second Protect (also the light ring goes blue) and then it gives up with error PO23.

It would be of more help if Nest listed all these error codes for I can find no reference to PO23.

I also tried calling UK support this morning but after hanging on for ten minutes gave up.
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If you have a concern that whilst these are currently set-up, Wi-Fi may be an issue in the future, this page may be of interest. It explains more about the Self Test and under what circumstances you'll receive alerts and notifications about Wi-Fi. 
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