@JoeRocket I would suggest outdoor rated Deco unit, such as X50-Outdoor or BE25-Outdoor. These units have Ethernet port you can use to connect them to your house network with Ethernet cable. This is...

@Alexandre. Thanks for clarification. Please see below BE65-PoE product description screenshot from Amazon Canada web site (link https://www.amazon.ca/gp/product/B0GSSNMQDN):

Hardware specs for Deco BE65-PoE state they have two 5Gbps Ethernet ports. Do these ports also support 2.5Gbps speed? My home LAN runs on 2.5Gbps with TP-Link switch TL-SG108S-M2, thinking of...

@Forsythia "If I want a seamless network everywhere, would I need to buy a second X50 to connect directly to the Box and then disable the Box's own Wi-Fi (to have only one mesh network)?" This is...

@EDuff I use IoT Network and can say with all confidence devices on IoT Network have access to Internet. No settings required- Internet access is allowed by default.

@Nits1911 Here is comparison page for these two models: https://www.tp-link.com/ca/compare/?typeId=5700&productIds=107756%2C107754 The only difference I can find is Ethernet ports speed: BE65 has all...