Google Nest Wifi With TalkTalk: How to Set It Up Properly (and Fix Double NAT)
12 November 2026 · By Ethan Fernandes
Double NAT or devices dropping with Google Nest Wifi and TalkTalk broadband? The right setup for this combination, whether to keep the TalkTalk Wi-Fi Hub, what full fibre needs, and how to protect your home phone.
Quick fix
The TalkTalk Wi-Fi Hub has no modem mode, and Google Nest Wifi only supports one unit in bridge mode. On full fibre, the best option is to connect the Nest Wifi straight to the Openreach fibre box (DHCP, no login), as long as you don't need the TalkTalk home phone. Otherwise keep the Nest Wifi as the router behind the hub, turn off the hub's Wi-Fi and use its DMZ setting.
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Get help todayYou've added Google Nest Wifi to your TalkTalk broadband and it isn't quite right: the app warns about double NAT, games report strict or moderate NAT, a work VPN drops, smart devices disappear, or phones hop between the TalkTalk Wi-Fi Hub's Wi-Fi and the Nest Wifi. The cause is that both are acting as the router. Here's how to set up this exact combination properly.
The short version: The TalkTalk Wi-Fi Hub has no modem mode, and Google Nest Wifi only supports one unit in bridge mode. On full fibre, the best option is to connect the Nest Wifi straight to the Openreach fibre box (DHCP, no login), as long as you don't need the TalkTalk home phone. Otherwise keep the Nest Wifi as the router behind the hub, turn off the hub's Wi-Fi and use its DMZ setting.
Before You Start: Two Questions
- Full fibre or part fibre? On full fibre there's an Openreach fibre box on the wall, and your mesh can connect to it directly. If you're on part-fibre broadband, the TalkTalk Hub is also your modem, so it has to stay.
- Do you use the TalkTalk home phone? If your home phone plugs into the TalkTalk Wi-Fi Hub, removing the hub stops the phone working, so keep the hub and use Option 2 below.
Option 1 (Full Fibre, No Home Phone Needed): Nest Wifi Direct
This is the best setup for Google Nest Wifi, because it stays in router mode and every Nest Wifi point keeps working.
- Connect the main Nest Wifi router to the network port on the Openreach fibre box.
- In the Google Home app's advanced networking settings, leave the WAN connection on automatic (DHCP). TalkTalk Full Fibre doesn't need a username or password: set the internet connection type to automatic (DHCP). A few TalkTalk lines also need VLAN 101 on the router's internet port, so try that if it won't connect.
- Restart and check you're online, then unplug the TalkTalk Wi-Fi Hub.
Option 2 (Keeping the Hub): Nest Wifi as Router, Hub DMZ
Normally you'd use bridge mode, but in bridge mode, Google Nest Wifi and Google Wifi only work as a single unit. Any extra points stop working, which defeats the point of mesh. So instead:
- Connect the main Nest Wifi router to the TalkTalk Wi-Fi Hub and leave it in router mode.
- Open the hub's settings (the address and admin password are on the hub's sticker or card) and turn off its Wi-Fi.
- Set the hub's DMZ, if it has one, to the Nest Wifi router, to reduce double NAT problems with games and VPNs.
TalkTalk doesn't officially support third-party routers, so if you report a fault they may ask you to reconnect the TalkTalk Hub first.
Still Not Right? Quick Checks
- Two Wi-Fi networks? If the TalkTalk Wi-Fi Hub's Wi-Fi is still on, devices may join it instead of the Nest Wifi. Turn it off, or give it a completely different name.
- Restart in order: the TalkTalk Wi-Fi Hub first, then the main Nest Wifi unit once the hub is online, then the other units.
- Main unit next to the hub, connected by cable. Other units about halfway to the weak areas, not in them.
- Use cables between units where you can. Wired connections between mesh units give much better speed than wireless.
- Smart plugs and cameras won't connect? Many only use 2.4GHz. See smart device won't connect to Wi-Fi.
How We Handle It
We set up Google Nest Wifi with TalkTalk properly: choosing between keeping the hub or connecting straight to the fibre box, protecting your home phone, configuring the mesh, placing the units for full coverage and testing every room, games console and VPN. See our Wi-Fi and home networking service.
Related Reading
Common questions
Yes. Keep the TalkTalk Wi-Fi Hub as the router and leave the Nest Wifi in router mode with the hub Wi-Fi off, or on full fibre connect the Nest Wifi straight to the Openreach fibre box if you don't need the home phone.
On full fibre, usually yes: connect the Nest Wifi to the Openreach fibre box (DHCP, no login). On part-fibre broadband the hub is also your modem, and if your home phone plugs into the hub it needs to stay.
None. TalkTalk Full Fibre uses an automatic (DHCP) connection with no username or password, though a few lines also need VLAN 101.
Yes, if the TalkTalk Wi-Fi Hub stays connected and the phone plugs into it. If you remove the hub, a home phone that plugs into it stops working.
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