While DHCP is good and nice there also needs to be a way to manually configure a static IP address, subnet, gateway and DNS server for WiFi networking.
You can do it via GUI ?
No, not for WiFi. Not on the phone nor in the web UI.
If you configure from network settings, you should be able to change the setting from DHCP to Static IP.
The network settings also apply to wifi. However, if you connect your phone with ethernet cable, our phone will prioritize ethernet connection.
Ok interesting - that is very confusing.