diff --git a/homeassistant/components/devolo_home_network/entity.py b/homeassistant/components/devolo_home_network/entity.py
index 53c502dc811..a0aa0466d90 100644
--- a/homeassistant/components/devolo_home_network/entity.py
+++ b/homeassistant/components/devolo_home_network/entity.py
@@ -12,7 +12,7 @@ from devolo_plc_api.device_api import (
 from devolo_plc_api.plcnet_api import LogicalNetwork
 
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.helpers.device_registry import DeviceInfo
+from homeassistant.helpers.device_registry import CONNECTION_NETWORK_MAC, DeviceInfo
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.update_coordinator import (
     CoordinatorEntity,
@@ -49,6 +49,7 @@ class DevoloEntity(Entity):
 
         self._attr_device_info = DeviceInfo(
             configuration_url=f"http://{device.ip}",
+            connections={(CONNECTION_NETWORK_MAC, device.mac)},
             identifiers={(DOMAIN, str(device.serial_number))},
             manufacturer="devolo",
             model=device.product,
diff --git a/tests/components/devolo_home_network/snapshots/test_init.ambr b/tests/components/devolo_home_network/snapshots/test_init.ambr
index f2c27183945..6ba4292c5de 100644
--- a/tests/components/devolo_home_network/snapshots/test_init.ambr
+++ b/tests/components/devolo_home_network/snapshots/test_init.ambr
@@ -5,6 +5,10 @@
     'config_entries': <ANY>,
     'configuration_url': 'http://192.0.2.1',
     'connections': set({
+      tuple(
+        'mac',
+        'aa:bb:cc:dd:ee:ff',
+      ),
     }),
     'disabled_by': None,
     'entry_type': None,