WiFi will not work in many cases - see this section on ‘known limitations’ - [Known-Good Hardware Master List] Hardware Capable of Running embassyOS v0.3.3+ and the associated issue here - [feat] Add ability to add non-free software (namely for DIY wi-fi) · Issue #2078 · Start9Labs/embassy-os · GitHub
Please try again with an ethernet connection, which is highly recommended in any case, as this is meant to be a server, which needs a reliable and fast connection at all times.