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Two problems connecting Nest routers to T-Mobile Gateway.

Community Member

I’m trying to set up 3 new Google Nest Wifi routers (NOT the Pro model) to extend my T-Mobile Gateway (ARC KVD21 GATEWAY). I have two problems. 1) The first Nest Wifi router I set up doesn’t seem to work after I disconnect it from the Gateway Ethernet and move it. 2) When I try to set up a second Nest Wifi router I get a “Network is offline” error.


Apparently I can’t use my MacBook Pro to set it up, so I’m using my iPhone. My iPhone meets all the requirements, I’ve loaded Google Home, I’ve troubleshooted all the possible setting errors with using iOS and I already had everything set the way it’s supposed to be (e.g. no VPN). I’ve tried rebooting Google Home.

I set up the first Google Nest Wifi Router with its own unique SSID, then I disconnected it from the T-Mobile Gateway. I moved the wifi point across the room and plugged it in—so now it is not tethered by Ethernet to the Gateway, only connected to power. I can connect to this newly set up wifi point on my laptop this way, it shows it’s connected and green, but I can’t access the internet. I tried unplugging and plugging it.

Then I tried to connect a second Google Nest Wifi Router to the T-Mobile Gateway. I click on “add a new device.” The app finds the device, but when it tries to connect it says “Network is offline.” Both the T-Mobile Gateway (which is working) and the first Google Nest Wifi Router (which is plugged in but can’t access the internet) are showing up on my laptop. I tried unplugging and plugging it. I tried rebooting Google Home (again).

I really don’t want to have to delete all my other “known networks” on my phone and computer on the off chance that’s a problem. I have one point-to-point service, the T-Mobile Gateway, and then my iPhone as a hotspot. 

If anyone has any suggestions I’d appreciate it. If troubleshooting this is going to be too difficult I’ll just  throw in the towel and send them back. Thanks.



Platinum Product Expert
Platinum Product Expert

The connection between your primary Wifi point (the first one you setup) and your T-Mobile gateway is not wireless, it must remain wired to your T-Mobile Gateway. Once setup, you can continue and add your other Wifi points, which you can position where needed. Those do connect wirelessly back to your primary Wifi points.

Set up Nest Wifi Pro or Nest Wifi - Google Nest Help
Where to place your Wifi devices - Google Nest Help

Community Member

Thanks, David! I'll try that.