diff --git a/files/nats_registration_listener.py b/files/nats_registration_listener.py
index 1a675a6..34c58b4 100644
--- a/files/nats_registration_listener.py
+++ b/files/nats_registration_listener.py
@@ -83,6 +83,7 @@ IGNORE_MACS_RAW = [
     "D0:6C:37:00:AB:20",
     "c4:93:00:4E:96:F0",
     "D0:6C:37:00:D2:F0",
+    "C4:93:00:50:AC:3C",
 ]
 
 # Global counter for any NetBox-related problems