Whole Home disc in outdoor workshop via Ethernet cable

[Wingate1975]

Hi

I have whole home set up and has been faultless. However I’ve just built a home office/workshop by the house and used foil bubble wrap insulation, which has killed any Wi-fi inside it! Didn’t think of that at the time sadly. There is only a gap of 3 feet between the house and the office, so should be no issue with reception. Works perfectly anywhere outside. 
Would I be able to put a whole home disc inside the office and hard wire it with an Ethernet cable to a disc inside the house to give full signal? 
Hopefully that makes sense???
Many thanks

[NeilO]

Hi @Wingate1975, welcome back to the community and thanks for posting, I found this answer on the Whole Home Wifi FAQ's 

Can I connect more than one disc to my hub (router) using the Ethernet cables?

If you're using Whole Home Wi-Fi or Mini Whole Home Wi-Fi, you can. If you wish, you can locate a disc a long distance from your hub (router) - for example, in an outbuilding - and have an Ethernet cable connection back to your hub (router). Just plug in the cable in the disc’s RJ45 socket and it'll join your Whole Home Wi-Fi network.

If you're using Premium Whole Home Wi-Fi, you can't. Only your first disc can be connected to the hub (router) using an Ethernet cable. If you wish to connect more discs by Ethernet, you'll need to connect them to the Ethernet port on another disc. You can also use the Ethernet ports on these discs for devices such as TVs and printers.

[Wingate1975]

Thanks Neil, I’ll give it a go.

[Keith_Beddoe]

@Wingate1975 

If you have not got a spare disc, then a wireless access point would be a much cheaper option.

https://www.tp-link.com/uk/home-networking/access-point/tl-wa801n/

About £22.