diff --git a/homeassistant/components/devolo_home_network/coordinator.py b/homeassistant/components/devolo_home_network/coordinator.py
index d23aa0e935e..5af9afb12ae 100644
--- a/homeassistant/components/devolo_home_network/coordinator.py
+++ b/homeassistant/components/devolo_home_network/coordinator.py
@@ -207,7 +207,7 @@ class DevoloUptimeGetCoordinator(DevoloDataUpdateCoordinator[int]):
 
 
 class DevoloWifiConnectedStationsGetCoordinator(
-    DevoloDataUpdateCoordinator[list[ConnectedStationInfo]]
+    DevoloDataUpdateCoordinator[dict[str, ConnectedStationInfo]]
 ):
     """Class to manage fetching data from the WifiGuestAccessGet endpoint."""
 
@@ -230,10 +230,11 @@ class DevoloWifiConnectedStationsGetCoordinator(
         )
         self.update_method = self.async_get_wifi_connected_station
 
-    async def async_get_wifi_connected_station(self) -> list[ConnectedStationInfo]:
+    async def async_get_wifi_connected_station(self) -> dict[str, ConnectedStationInfo]:
         """Fetch data from API endpoint."""
         assert self.device.device
-        return await self.device.device.async_get_wifi_connected_station()
+        clients = await self.device.device.async_get_wifi_connected_station()
+        return {client.mac_address: client for client in clients}
 
 
 class DevoloWifiGuestAccessGetCoordinator(
diff --git a/homeassistant/components/devolo_home_network/device_tracker.py b/homeassistant/components/devolo_home_network/device_tracker.py
index ad3d3e1cffa..a0cdd381261 100644
--- a/homeassistant/components/devolo_home_network/device_tracker.py
+++ b/homeassistant/components/devolo_home_network/device_tracker.py
@@ -28,9 +28,9 @@ async def async_setup_entry(
 ) -> None:
     """Get all devices and sensors and setup them via config entry."""
     device = entry.runtime_data.device
-    coordinators: dict[str, DevoloDataUpdateCoordinator[list[ConnectedStationInfo]]] = (
-        entry.runtime_data.coordinators
-    )
+    coordinators: dict[
+        str, DevoloDataUpdateCoordinator[dict[str, ConnectedStationInfo]]
+    ] = entry.runtime_data.coordinators
     registry = er.async_get(hass)
     tracked = set()
 
@@ -38,16 +38,16 @@ async def async_setup_entry(
     def new_device_callback() -> None:
         """Add new devices if needed."""
         new_entities = []
-        for station in coordinators[CONNECTED_WIFI_CLIENTS].data:
-            if station.mac_address in tracked:
+        for mac_address in coordinators[CONNECTED_WIFI_CLIENTS].data:
+            if mac_address in tracked:
                 continue
 
             new_entities.append(
                 DevoloScannerEntity(
-                    coordinators[CONNECTED_WIFI_CLIENTS], device, station.mac_address
+                    coordinators[CONNECTED_WIFI_CLIENTS], device, mac_address
                 )
             )
-            tracked.add(station.mac_address)
+            tracked.add(mac_address)
         async_add_entities(new_entities)
 
     @callback
@@ -82,7 +82,7 @@ async def async_setup_entry(
 
 # The pylint disable is needed because of https://github.com/pylint-dev/pylint/issues/9138
 class DevoloScannerEntity(  # pylint: disable=hass-enforce-class-module
-    CoordinatorEntity[DevoloDataUpdateCoordinator[list[ConnectedStationInfo]]],
+    CoordinatorEntity[DevoloDataUpdateCoordinator[dict[str, ConnectedStationInfo]]],
     ScannerEntity,
 ):
     """Representation of a devolo device tracker."""
@@ -92,7 +92,7 @@ class DevoloScannerEntity(  # pylint: disable=hass-enforce-class-module
 
     def __init__(
         self,
-        coordinator: DevoloDataUpdateCoordinator[list[ConnectedStationInfo]],
+        coordinator: DevoloDataUpdateCoordinator[dict[str, ConnectedStationInfo]],
         device: Device,
         mac: str,
     ) -> None:
@@ -109,14 +109,8 @@ class DevoloScannerEntity(  # pylint: disable=hass-enforce-class-module
         if not self.coordinator.data:
             return {}
 
-        station = next(
-            (
-                station
-                for station in self.coordinator.data
-                if station.mac_address == self.mac_address
-            ),
-            None,
-        )
+        assert self.mac_address
+        station = self.coordinator.data.get(self.mac_address)
         if station:
             attrs["wifi"] = WIFI_APTYPE.get(station.vap_type, STATE_UNKNOWN)
             attrs["band"] = (
@@ -129,11 +123,8 @@ class DevoloScannerEntity(  # pylint: disable=hass-enforce-class-module
     @property
     def is_connected(self) -> bool:
         """Return true if the device is connected to the network."""
-        return any(
-            station
-            for station in self.coordinator.data
-            if station.mac_address == self.mac_address
-        )
+        assert self.mac_address
+        return self.coordinator.data.get(self.mac_address) is not None
 
     @property
     def unique_id(self) -> str:
diff --git a/homeassistant/components/devolo_home_network/entity.py b/homeassistant/components/devolo_home_network/entity.py
index be437314ae4..79b9b846463 100644
--- a/homeassistant/components/devolo_home_network/entity.py
+++ b/homeassistant/components/devolo_home_network/entity.py
@@ -21,7 +21,7 @@ from .coordinator import DevoloDataUpdateCoordinator, DevoloHomeNetworkConfigEnt
 type _DataType = (
     LogicalNetwork
     | DataRate
-    | list[ConnectedStationInfo]
+    | dict[str, ConnectedStationInfo]
     | list[NeighborAPInfo]
     | WifiGuestAccessGet
     | bool
diff --git a/homeassistant/components/devolo_home_network/sensor.py b/homeassistant/components/devolo_home_network/sensor.py
index f4c911bf787..941eec4215d 100644
--- a/homeassistant/components/devolo_home_network/sensor.py
+++ b/homeassistant/components/devolo_home_network/sensor.py
@@ -47,7 +47,11 @@ def _last_restart(runtime: int) -> datetime:
 
 
 type _CoordinatorDataType = (
-    LogicalNetwork | DataRate | list[ConnectedStationInfo] | list[NeighborAPInfo] | int
+    LogicalNetwork
+    | DataRate
+    | dict[str, ConnectedStationInfo]
+    | list[NeighborAPInfo]
+    | int
 )
 type _SensorDataType = int | float | datetime
 
@@ -79,7 +83,7 @@ SENSOR_TYPES: dict[str, DevoloSensorEntityDescription[Any, Any]] = {
         ),
     ),
     CONNECTED_WIFI_CLIENTS: DevoloSensorEntityDescription[
-        list[ConnectedStationInfo], int
+        dict[str, ConnectedStationInfo], int
     ](
         key=CONNECTED_WIFI_CLIENTS,
         state_class=SensorStateClass.MEASUREMENT,