check your firewall settings. I had to set mine to min from max to get my NEST to talk. I have not tried the med setting or opening the port which Nest uses. YET
Well I've tried everything aside from getting a seperate router and nothing works, likely better to start looking for a better internet provider cause frankly Roger's customer service and support have gone way down in the past few years. $129 to talk to a so called TechXpert give me a break, that service use to be part of general support.
There is a lot of discussion on the NEST forum about wifi connection issues.especially with the last update.
I worked thru my issue with NEST support , abet I discovered the firewall issue because of the newly installed CGN3 cable modem/router.
BTW Port forwarding was not necessary.
On Nest check voltage mine is 3.91 volts
check software version mine is 4.3.3
If network reset does not work reset nest and reload Wi-Fi settings
NEST does not support Wi-Fi N or AC only G
Finally got my NEST set up today.
The G is no completely correct.. I have my wifi in my house, set to N only, and the NEST connects just fine.
I am running the CGN3, in gateway mode, with my own router for wireless.
My firewall settings are set to MINIMAL, and no port forwarding.. it connected instantly.
My first though would be something with the WIFI on the CGN3 being the issue.. but it sounds like frankb's is fine with the CGN3's wifi.
There must be something else which is interfearing, etc with it.
I would try a full WIPE on the NEST, and re add it, right beside where the CGN3 is.
(wondering if its a signal range issue to where the unit it going)
Going to another provider, i dont think would make much of a difference.
Bell's gateway devices.. are the same range wise if not worse.... and any 3rd party, will only provide you a modem, where you are at the same point of getting your own router to do wifi anyways.