Hallo Dirk! I think we can use German, but up to you. The HomePod mini may be too far away even for Thread. Another Eve Energy (EU, 2020) in the first floor would do the trick. The HomePod mini is the only Thread border router, Wi-Fi routers do mesh but this is different. And please refrain from the Speedport routers at all, they are just junk since all the years. Best regards, Volker
Jan 26, 2021