Re: A cautionary tale against buying the line6 digital wireless
A long delayed post mortem to this.
Moving the receiver to a new location (away from the putative locale of a third parties WiFi source), having another tenant (software company) leave the building, and switching operational modes got the receiver settled down. Don was quite helpful throughout. We are still using it, and my frustration has waned.
My only remaining complaint is about the microphone's sensitivity to face stubble.
Don, if you read this, I owe you back that second headset microphone you graciously let me try in the troubleshooting process.