diff --git a/homeassistant/components/keenetic_ndms2/__init__.py b/homeassistant/components/keenetic_ndms2/__init__.py
index 4f709ab98fec..154820234b49 100644
--- a/homeassistant/components/keenetic_ndms2/__init__.py
+++ b/homeassistant/components/keenetic_ndms2/__init__.py
@@ -70,11 +70,15 @@ async def async_unload_entry(
                     _LOGGER.debug("Removing entity %s", entity_entry.entity_id)
 
                     ent_reg.async_remove(entity_entry.entity_id)
-                    if entity_entry.device_id:
-                        dev_reg.async_update_device(
-                            entity_entry.device_id,
-                            remove_config_entry_id=config_entry.entry_id,
-                        )
+                    # The tracker attaches to a device found by MAC, which may be
+                    # owned by another integration; only remove it if we own it.
+                    if (
+                        entity_entry.device_id
+                        and (device := dev_reg.async_get(entity_entry.device_id))
+                        is not None
+                        and device.config_entry_id == config_entry.entry_id
+                    ):
+                        dev_reg.async_remove_device(device.id)
 
         _LOGGER.debug("Finished cleaning device_tracker entities")