Multiple Networks

[Stinky-Pete]

Hi All please help. Sorry if a similar post has been made.
I have a home office in my backyard that is too far from the main house for the mesh network to carry. I have a multi ethernet port router in the house and have piggybacked the home network off this and it seems to work fine. I have then run a Cat6 cable from ethernet port 2 to the office. This works hardwired into my laptop but I don't have a Wi-Fi network. I have bought a second Google router, created a new home [Fortress of Solitude F.o.S]. The creation process seems to work and the Google home app shows the second home with the router in it but I cannot find the Wi-Fi network when I search on my devices. When I run a test, I get a message that this failed. The laptop however seems to have good ethernet connection even though it is hardwired through Router2. 
 What have I done wrong?
Schematic:
Street -----Router-----Google Router1 (home mesh network)

                         |
                        └---------Google Router 2(F.o.S mesh network)------Laptop

[olavrb]

What router is the "router", and how have you set it up? Is it in bridge mode?

This is essentially double NAT, as a main/primary Google Router unit in a Google Home network will act as a router too.

• https://dongknows.com/double-nat-vs-single-nat/

I'd rather remove the "router", make Google Router 1 the main/primary unit, then from its' LAN port take an ethernet cable to the office, connect it to Google Router 2 WAN port, and have "wired backhaul". Single Google Home home. Single network.

About wired backhaul:

• https://support.google.com/googlenest/answer/7215624?hl=en

If you want more ethernet ports on a Google Router unit, add an unmanaged switch:

• https://support.google.com/googlenest/answer/6274262?hl=en

Visualization of wired backhaul in a diagram I made earlier:

• https://www.googlenestcommunity.com/t5/Nest-Wifi/Ethernet-backhaul/m-p/284073/highlight/true#M31892

[AbigailF]

Hey folks, 

Thanks for lending a hand, @olavrb.
@Stinky-Pete, I wanted to follow up and see if you are still in need of any help. Please let me know if you are still having any concerns or questions from here, as I would be happy to take a closer look and assist you further.

Thanks,
Abi

[LovelyM]

Hi Stinky-Pete,

I want to check if you still need help. Don't hesitate to reply to this thread if you have other questions or concerns.

Best, 
Lovely

[AbigailF]

Hello Stinky-Pete,

We haven't heard from you in a while so we'll be locking this thread if there is no update within 24 hours. If you have any new issues, updates or just a discussion topic, feel free to start a new thread in the Community.

Regards, 
Abi