Speakers have gone MIA...

I added an additional airfoil speaker to my network today (Sabrent WiFi adapter) but could not get it to appear in the speaker list. I reset the speaker list and still nothing. I see all the speakers still in the Airfoil window, and I can play through them with the Say in Indigo, with System Audio set as the input. But I cannot get any of them to appear in the speaker list again. What am I doing wrong? Mac Mini, El Capitan, Indigo Pro 6.1.4. The following is from the debug mode. Any ideas?

Airfoil Debug runConcurrentThread: update()
Disabling plugin "Airfoil 1.1.9"
Stopping plugin "Airfoil 1.1.9" (pid 1319)
Stopped plugin "Airfoil 1.1.9"
Enabling plugin "Airfoil 1.1.9"
Starting plugin "Airfoil 1.1.9" (pid 7479)
Started plugin "Airfoil 1.1.9"
Airfoil Debug runConcurrentThread: update()
Airfoil Debug update method called
Airfoil Debug runConcurrentThread: update()
Airfoil Debug runConcurrentThread: update()
Airfoil Debug runConcurrentThread: update()
Airfoil Debug runConcurrentThread: update()
Airfoil Debug runConcurrentThread: update()
Airfoil Debug Speaker List: []
Airfoil Debug runConcurrentThread: update()
Airfoil Debug runConcurrentThread: update()

[jay (support)]

Make sure you don't have multiple copies of the Airfoil app on your Mac - that can cause failures like this.

Thanks Jay, I had seen your earlier troubleshooting post on that and checked. I just double-checked and even renamed the Airfoil Speakers app just in case. Restarted the plugin but no luck.

Just to confirm, in Airfoil I should have the output source set as the system, audio and NOT Indigo, correct? Seems like that is the only way I got it to work before.
Jim

My apologies, Jay...I'm a bit embarrassed. I had been running my demo Indigo from my Laptop, and transitioned to the Mac Mini went I bought the Pro version a few days ago. I'm still in the habit of running Indigo (client only now) from the laptop, so (of course) I searched my laptop for dupe copies of Airfoil instead of the Mac Mini server. Then I had the DUH! moment, and found the dupe copy on the mini. Speakers are back.
Thanks again.
Jim