Windows 10 Server Wi-Fi: Missing in Action

I have a laptop on which I installed the Windows Server Technical Preview 3, the third preview of the Windows 10 server OS. Today I found myself without a spare Ethernet cable for it, but I figured Wi-Fi would do the job. Apparently it won't - Windows always says "no connections available", even though I've confirmed that the Wi-Fi adapter/driver is present and enabled. Even pressing "Connect to" in Network Connections with it selected does nothing. I guess WSTP3 doesn't support Wi-Fi? That would be a shame.