Wired, of course. Though I did accidentally configure the sending instance of PA to send multicast pakcets. Which it did, with abandon, even when no audio was

Wired, of course. Though I did accidentally configure the sending instance of PA to send multicast pakcets. Which it did, with abandon, even when no audio was playing, saturating the wifi to such an extent that I was driven to despair before I figured it out. Consumer grade Wifi gear, even if loaded with, say, OpenWRT, does not handle overload gracefully. PA configuration is a confusing mix of config files and GUI stuff.