2 x Netgear PL1000 Gigabit powerline adapters.They are ethernet cable connected i.e. they arenot wireless / Wi-Fi. Powerline Technology. Powerline Performance. One (1) 10/100/1000 Gigabit Ethernet Port on each adapter.
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5000Mbps Ethernet Adapter 5G USB 3.0 Type C to RJ45 Network Card Wired Ethernet Gigabit Adapter Lan Card Hub for MacBook iPad
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Rated at 1300AV with a Gigabit port. Ethernet cables are NOT included (you will require 3 x cables rated Cat5e or above to use these powerline adapters). Then take the other two adapters into different rooms, plug them into wall sockets and then connect each one to an internet-enabled device (Smart TV, YouView Box, PC etc) using other ethernet cables.
eBay
USB C to Ethernet Adapter Type-C to RJ45 Adapter 1000Mbps Gigabit LAN Network Adapter 60W PD Type-C Ports & 2 USB 3.0 Ports
Aliexpress UK
5 x BT Mini Connector VERSION 2 Pass-through powerline adapters with DUAL Gig ethernet ports (they are wired/ethernet connected powerline adapters. not Wi-Fi adapters).
eBay
USB Network Adapter RJ45 USB-C Network cable USB Gigabite Ethernet Adapter 100Mbps Realtek USB to RJ45 network adapter for Macs
Aliexpress UK
2 x BT Mini Connector Passthrough powerline adapters (wired/ethernet-connected powerline adaptersnot wireless).
eBay
USB C to Ethernet Adapter Type-C to RJ45 Adapter 1000Mbps Gigabit LAN Network Adapter 60W PD Type-C Ports & 2 USB 3.0 Ports
Aliexpress UK
Powerline AV600 Ethernet Adapter x 1. Miniature design, smaller than most powerline adapters at the market, blends discreetly in front of any power outlet. Simply by pushing the Pair button on the adapters, users can set up a hassle-free Powerline network within minutes, complete with 128-bit AES encryption for network security and data protection.
eBay
1000Mbps Ethernet LAN Network Adapter USB C Gigabit Adapter Type-C to RJ45 Adapter 60W PD Type-C Ports & 2 USB 3.0 Ports
Aliexpress UK
AV1300 Gigabit Passthrough Powerline ac Wi-Fi Kit. AV1300 Gigabit Passthrough Powerline ac Wi-Fi KIT TP-Link AV1300 Gigabit Powerline Ac Wi-Fi Range Extender Single Adapter 3 Port. 2 × 2 MIMO - Establishes multiple simultaneous connections for you to enjoy higher powerline speeds and greater stability.
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USB 2.0 To LAN RJ45 Ethernet 10/100Mbps Networks Card Adapter for Win8 Mac OS PC USB A Connectors Converter Adapter USB Adapter
Aliexpress UK
1 x TL-WPA8630P AV1300 Gigabit Passthrough Powerline ac Wi-Fi Extender. 1 x TL-PA8010P AV1300 Passthrough Powerline Adapter. TP-LINK TL-WPA8630P AV1300 GIGABIT PASSTHROUGH 3-port ac WiFi EXTENDER KIT.
eBay
USB Wifi Adapter 600Mbps Wi fi Adapter 2.4G&5.8GHz USB Ethernet PC Wi-Fi Adapter Lan 300Mbps Wifi Dongle AC Wifi Receiver
Aliexpress UK
2 x Simpler Networks HP200PT64BT2 Passthrough powerline adapters (wired/ethernet connectednot wireless). As the signal supplied by powerline adapters is usually more stable than Wi-Fi, they are ideal for solving common Wi-Fi problems such as signal drop outs, Wi-Fi dead spots and buffering on internet-devices.
eBay
USB Type C to RJ45 Lan Network Card Ethernet Card Hub Splitter Adapter 10GBit/s for MacBook Xiaomi Samsung Windows Huawei PC
Aliexpress UK