diff --git a/src/auracast/multicast_script.py b/src/auracast/multicast_script.py
index b0eeb6e..553cebe 100644
--- a/src/auracast/multicast_script.py
+++ b/src/auracast/multicast_script.py
@@ -44,7 +44,11 @@ import time
 from dotenv import load_dotenv
 from auracast import multicast
 from auracast import auracast_config
-from auracast.utils.sounddevice_utils import list_usb_pw_inputs, list_network_pw_inputs
+from auracast.utils.sounddevice_utils import (
+    get_usb_pw_inputs,
+    get_network_pw_inputs,
+    refresh_pw_cache,
+)
 
 
 if __name__ == "__main__":
@@ -59,12 +63,14 @@ if __name__ == "__main__":
     
     os.environ.setdefault("PULSE_LATENCY_MSEC", "3")
   
-    usb_inputs = list_usb_pw_inputs()
+    # Refresh device cache and list inputs
+    refresh_pw_cache()
+    usb_inputs = get_usb_pw_inputs()
     logging.info("USB pw inputs:")
     for i, d in usb_inputs:
         logging.info(f"{i}: {d['name']}  in={d['max_input_channels']}")
   
-    aes67_inputs = list_network_pw_inputs()
+    aes67_inputs = get_network_pw_inputs()
     logging.info("AES67 pw inputs:")
     for i, d in aes67_inputs:
         logging.info(f"{i}: {d['name']}  in={d['max_input_channels']}")
@@ -85,7 +91,8 @@ if __name__ == "__main__":
         if iface_substr:
             # Loop until a matching AES67 input becomes available
             while True:
-                current = list_network_pw_inputs()
+                refresh_pw_cache()
+                current = get_network_pw_inputs()
                 sel = next(((i, d) for i, d in current if iface_substr in (d.get('name','').lower())), None)
                 if sel:
                     input_sel = sel[0]
@@ -100,7 +107,8 @@ if __name__ == "__main__":
     else:
         # Loop until a USB input becomes available (mirror AES67 retry behavior)
         while True:
-            current = list_usb_pw_inputs()
+            refresh_pw_cache()
+            current = get_usb_pw_inputs()
             if current:
                 input_sel, selected_dev = current[0]
                 logging.info(f"Selected first USB input: index={input_sel}, device={selected_dev['name']}")