I have the same setup, with the Lennox iComfort, and ever since the latest forced Orbi firmware it won't connect at all. I reset the wifi password to be super simple with no special characters after reading the iComfort has issues with those, and it connected once for about an hour last night before failing to connect again all day today.

For me this is a fairly recent thing, coinciding with the newest firmware. I think it broke something.

I do the wifi setup right at the iComfort panel.

I upgraded the firmware to the latest 2.1.4.14 and it connected once for about 30 minutes, but then disconnected again. And again, it's showing 3 identical SSIDs being broadcast.

The iComfort panel just sits at "joining" until displaying an error, wifi command timed out. This problem is new to me, and it's only been since 2.1.4.10/14 releases.

What FW is currently loaded?
What is the Mfr and model# of the ISP modem the NG router is connected too? 

What is the size of your home? Sq Ft? 
What is the distance between the router and satellite(s)? 30 feet is recommended in between them to begin with depending upon building materials.

What channels are you using? Auto? Try setting manual channel 1, 6 or 11 on 2.4Ghz and any unused channel on 5Ghz.
Any Wifi Neighbors near by? If so, how many?

Try disabling the following and see:
MIMO, Daisy Chain, Fast Roaming, IPv6 and Set 20/40Mhz Coexistence to 40Mhz only. Save settings and reboot the router and satellite(s).
If you updated to recent FW v.210, try enabling Daisy Chain. Some have mentioned that this seems to be working in reverse order, enabling means disabled actually. Hoping NG support can have a look at this. So try this out as well. 
https://community.netgear.com/t5/Orbi/Firmware-2-2-1-210-and-connection-problems-Skybell/m-p/1649275/highlight/true#M43001

Try this as well:

Advanced Wireless Settings both 2.4GHz and 5GHz changed CTS/RTS Threshold to 2307.
https://community.netgear.com/t5/Orbi/Orbi-RBR40-RBS40-V2-1-4-16-mesh-network-drops-connection-to/m-p/1601598/highlight/true#M35230
Change the CTR/RTS threshold values for both 2.4 GHz and 5 GHz (2341 and 2345 respectively), changed preamble modes to long preamble, and Set 20/40Mhz Coexistence to 40Mhz only.

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thermo1 wrote:

I too have had a connectivity problem as described.  My thermostat was working fine and installed on 5/16 until late summer of 2018.  In June of 2018 I installed my Orbi system without a problem, including my thermostat and all other wifi devices.  In September, my Orbi connection to my Lennox icomfort thermostat became intermittent and then virtually noexistant.  I disconnected Orbi and reconnected to my former router and the thermostat connects to the wifi as it should.  I have many deadspots in my home that Orbi corrected, but the thermostat connection is unacceptable.  Help!

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What version of FW are you using?

Try any of the suggestions mentioned in the prior post?

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sc13 wrote:

I just got our system installed which includes Lennox iComfort S30 smart hub.  They will not connect, and yes it shows WPA connection attempt.

 

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Thanks for letting us know...

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sc13 wrote:

I just solved this problem by going back one version of firmware in my Orbi.

 

for me, this is where I was able to get a previous version

https://www.netgear.com/support/product/RBR20.aspx#download

 

then I logged into my system

www.orbilogin.net

Advanced > Administration > Firmware Update

Then click Browse, and search for the firmware file that you downloaded

Make sure that you select the device then click Update

 

 

                                  

 

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