My Home Hub is also in the basement and is connected to the network via a switch. I've connected one camera near the Home Hub to its own Wi-Fi network because the regular Wi-Fi signal isn't strong enough. The other cameras are connected to the regular Wi-Fi network. All the cameras store their data on the Home Hub. From what I've read in Reolink's manuals and tutorials, the problem is that cameras connected via the regular Wi-Fi network always need an internet connection. This means that if the internet goes down, those cameras won't be able to store data on the Home Hub. However, the camera connected directly to the Home Hub can continue to store data without an internet connection. (https://reolink.com/blog...)

Yes, you can connect the Home Hub 1 to the Reolink Altas PT Ultra. The Altas PT Ultra is compatible with the Reolink Home Hub and supports up to 8 Reolink IP cameras for centralised storage and management.

A 64 GB SD card is included in the scope of delivery.

I was able to do some research and according to the manufacturer's specifications, both models seem to have the same technical data. So I couldn't find any difference. The Hub 1 is most likely the previous version and has a 128GB memory card included whereas the Home Hub has a 64GB memory card. I will request that the details be added.