I have zero problems throughout the house.

I just bought it new. It was delivered today. I wanted to go through all the settings. WLAN connection is not possible, although the WLAN device is right next to it (Bluetooth no problems). I also did the latest update via my PC because I thought it might be the problem. But it hasn't improved so far. Let's see, if it doesn't work, it will probably be a warranty case. Hopefully not, as I have to travel abroad in a few days and I bought the navigation system especially for the trip.