Didi a fresh install of the latest ASL from the repo on a fresh install of raspbian on an RPI 3. The issue is simple... the pi sees the URI but ASL seems to have issues.. I have included sample output from a variety of commands below which clearly details the underlying OS sees the URI as it should, and the given address etc... see the example output below... taken from /var/log/asterisk/messages [Jul 7 22:19:46] WARNING[6703] chan_usbradio.c: Loaded parameters from usbradio_tune_usb.conf for device usb . [Jul 7 22:19:46] WARNING[6703] chan_usbradio.c: Unable to re-open DSP device 1 (usb): No such file or directory $ cat /proc/asound/cards 0 [ALSA ]: bcm2835_alsa - bcm2835 ALSA bcm2835 ALSA 1 [Device ]: USB-Audio - USB PnP Sound Device C-Media Electronics Inc. USB PnP Sound Device at usb-3f980000.usb-1.1.3, full s $ lsusb Bus 001 Device 004: ID 0bda:2838 Realtek Semiconductor Corp. RTL2838 DVB-T Bus 001 Device 005: ID 0d8c:013a C-Media Electronics, Inc. Bus 001 Device 006: ID 0424:7800 Standard Microsystems Corp. Bus 001 Device 003: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub Bus 001 Device 002: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub $ cat /etc/asterisk/usbradio_tune_usb.conf [usb] ; name=usb ; devicenum=1 devstr=1-1.1.3:1.0 rxmixerset=500 txmixaset=450 txmixbset=500 rxvoiceadj=0.557342 rxctcssadj=0.930165 txctcssadj=220 rxsquelchadj=754 fever=1