Wi‑Fi Connectivity

• Why the audio/video quality of the app is low during communication?
• My Classe 300X does not connect to the internet. What should I do?
• How can I reset the WiFi network on my Classe 300X? Example: after changing the WiFi password, changing WiFi router or Wifi repeter ...
• Can I connect my Classe 300X to the data network with a cable?
• Which functions still work without WiFi connection?
• Is it possible to associate the Classe 300X with the Home + Security App without internet connection?
• Do I have to NAT my router ports to receive the call on my smartphone?
• What kind of wifi network I need in my apartament?