Goal
Ensure only one process controls the alert device.

Steps
1) Confirm no other KDS instance or app is running on the device.
2) If multiple KDS screens share a device:

• Ensure only one is configured to play audio.
  3) Disable audio on secondary or mirrored stations.
  4) Retest alerts.
  5) If audio still unstable → proceed to P-000128-05.

Escalation Trigger

• Audio works on some stations but not others.