Volumio Audiophile Music Player for Raspberry Pi -> MicroSD

hi there, just downloaded it, dd’t it to SD, started it
(step: PREPARE IT…) apart …from connecting to ethernet…
and then -I can see see Volumino WiFI network -can’t connect bcos of credentials,
co logged-in, did configure static address through /etc/network/interfaces,
provided wpa-supplicant config…
during boot i see messages that wlan0 is already…
ip address of wlan0 is different form the one i set…

how is it meant to be used without wired ethernet connection ??

volumio.github.io/docs/User_Man … Guide.html

?how did i miss that?
thank you for such weel done job !