WiFi problems

I have Volumio working on a Raspberry Pi/HifiBerry dac (in fact I have two). I’ve tried swapping one to a wifi connection (using a Raspberry Pi WiFi adapter). Although basic connectivity is functioning, playback is badly affected 44.1 khz/16bit flac files play and stop and 192khz/24 bit flac files hardly play at all. (the files are stored on a NAS. Using a Mac Mini in exactly the same position works absolutely fine (same files being played back.)

So. Should it be possible to use Volumio with wifi connect to a NAS? (From what I’ve seen in posts the answer is yes).

How do I start troubleshooting the problem?