Dream Machine Series

You would want a cloud gateway of some sort. The UDM Pro Max or SE are solid choices. You will want a PoE switch if you start with the Pro Max since it has better specs, but doesn’t offer native PoE ports. Then you will want APs of some sort. WiFi 6 or WiFi 7…often the latter requires more power, so the SE might not have enough power for many WiFi 7 APs. The Pro APs are nice and the U6-Mesh is a nice table top AP. The product names are sometimes misleading, so read the specs…or ask here.

You can easily do this with Ubiquiti UniFi gateways. Often we create a different SSID for IoT and just turn on 2.4GHz for that SSID. Turn off 5GHz etc.

Buy a decent router and get the pppoe settings from Sky. Connect that router directly to the Openreach modem. I use a Unifi Dream Machine as I have IP cameras.

I’d just get a dream machine for the base station. E7 is pretty overkill it’s for enterprise. Also you probably don’t have any devices that support Wifi7 but I understand if you want to future proof.

You can use UniFi either with their router (Cloud Gateways or Dream Machines) or with their controller (Cloud Key) and let your ISP Router manage the routing part. The Cloud Key can manage the network (switches, APs), the surveillance (acts as a camera recorder) and the door access control (can open doors remotely, through rfid tags, cell phone, QR code, local face recognition, license plate, etc. ). All the Cloud Gateways give you full control of the network and can take over your ISP routing functions by putting the ISP router in bridge mode. The most advanced Cloud Gateways, like the UCG-Max and the UCG-Fiber, and the Dream Machines can also do what the Cloud Key does plus acting as a router. Once you try an wireless distribution system like UniFi’s, you’ll never want to revert to single center point systems.

Do not put a deco mesh system into your 32,000 sqft mansion.  You should be looking at higher end systems like UniFi, HpE, Ruckus. I’m not super familiar with engenius.  You need a centrally managed system and with an estate of this size a high end system will be a drop in the bucket of your build budget.

Yeah. I did. Along with hpe and ruckus. A number of my wealthy clients specifically request UniFi and in my experience they stay happy with it and I rarely have to touch anything. It’s also commonly used at resorts, hotels, etc What’s your beef with UniFi?

Ubiquiti makes UniFi. Yes.

Dream machine should be able to cover everything. Maybe an express can as well and they can be had used for $80

The question comes down to how much you want to mess with your router? Personally I don't want to mess with it at all, so I went with the Dream Machine along with UniFi access points and switches. It took me 20 hours or so to learn how to set it up correctly and now it has been running for 7 years or so. I have a pair of Raspberry Pis running Ad Guard and act as my network's DNS. Another Pi running Home Assistant with a lot of radios and such plugged into it. Other than keeping them up to date with the latest firmware and software I don't really think about my network at all anymore. Until I want to that is.

Ubiquiti. It is well worth the investment. You need a Dream Machine and then a handful of access points depending on house size.

I had the UniFi Amplify Alien mesh system and it was ok, but like the other posters said, it’s 1000x better to go wired even if just to one other spot. I upgraded to a dream machine and a few APs and it’s night and day now, especially if you have friends or kids who do a lot of WiFi gaming.

Unifi Dream Machine would also be a good shout. I'm with Community Fibre (5G symmetrical) and have a UDM Pro Max at home. For our other house which I hope will soon have 1G symmetrical we have a UDM Pro. Easy to use, but massively expandable, and can also manage a lot of the Unifi kit as well.