Assuming v1 has the drivers for the 400 Wi-Fi I expect its because V1.0 defaults to being an access point. You need to disable it. Instructions are here:-
I have a new RP400 I'm trying to use with Hampi v 1.0.? Running the software that came with the computer, I have time/date updates, wifi and software updates.? Running Hampi 1.0, I don't get any of that.
I've spent several days looking for a solution without success.? I've hooked the 400 up to ethernet and can get on the web, but no luck with updates, time, or wifi. As if I didn't have enough working against me, I'm also brand new to Linux.