Fixes: #15016 - Catch AssertionError from cable trace and throw ValidationError (#16384)

netbox/wireless/signals.py

@@ -3,8 +3,10 @@ import logging
 from django.db.models.signals import post_save, post_delete
 from django.dispatch import receiver
 
+from dcim.exceptions import UnsupportedCablePath
 from dcim.models import CablePath, Interface
 from dcim.utils import create_cablepath
+from utilities.exceptions import AbortRequest
 from .models import WirelessLink
 
 
@@ -34,7 +36,10 @@ def update_connected_interfaces(instance, created, raw=False, **kwargs):
     # Create/update cable paths
     if created:
         for interface in (instance.interface_a, instance.interface_b):
-            create_cablepath([interface])
+            try:
+                create_cablepath([interface])
+            except UnsupportedCablePath as e:
+                raise AbortRequest(e)
 
 
 @receiver(post_delete, sender=WirelessLink)