diff --git a/homeassistant/components/asuswrt/bridge.py b/homeassistant/components/asuswrt/bridge.py
index ae6cbc1c82a..0832bdba23c 100644
--- a/homeassistant/components/asuswrt/bridge.py
+++ b/homeassistant/components/asuswrt/bridge.py
@@ -7,7 +7,7 @@ from collections import namedtuple
 from collections.abc import Awaitable, Callable, Coroutine
 import functools
 import logging
-from typing import Any, cast
+from typing import Any
 
 from aioasuswrt.asuswrt import AsusWrt as AsusWrtLegacy
 from aiohttp import ClientSession
@@ -219,7 +219,7 @@ class AsusWrtLegacyBridge(AsusWrtBridge):
     @property
     def is_connected(self) -> bool:
         """Get connected status."""
-        return cast(bool, self._api.is_connected)
+        return self._api.is_connected
 
     async def async_connect(self) -> None:
         """Connect to the device."""
@@ -235,8 +235,7 @@ class AsusWrtLegacyBridge(AsusWrtBridge):
 
     async def async_disconnect(self) -> None:
         """Disconnect to the device."""
-        if self._api is not None and self._protocol == PROTOCOL_TELNET:
-            self._api.connection.disconnect()
+        await self._api.async_disconnect()
 
     async def async_get_connected_devices(self) -> dict[str, WrtDevice]:
         """Get list of connected devices."""
diff --git a/homeassistant/components/asuswrt/manifest.json b/homeassistant/components/asuswrt/manifest.json
index 6273c77ca78..3f2872bf258 100644
--- a/homeassistant/components/asuswrt/manifest.json
+++ b/homeassistant/components/asuswrt/manifest.json
@@ -7,5 +7,5 @@
   "integration_type": "hub",
   "iot_class": "local_polling",
   "loggers": ["aioasuswrt", "asusrouter", "asyncssh"],
-  "requirements": ["aioasuswrt==1.4.0", "asusrouter==1.21.0"]
+  "requirements": ["aioasuswrt==1.5.1", "asusrouter==1.21.0"]
 }
diff --git a/requirements_all.txt b/requirements_all.txt
index c3223f80070..1f33a055ba6 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -201,7 +201,7 @@ aioaquacell==0.2.0
 aioaseko==1.0.0
 
 # homeassistant.components.asuswrt
-aioasuswrt==1.4.0
+aioasuswrt==1.5.1
 
 # homeassistant.components.husqvarna_automower
 aioautomower==2.2.1
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index 706f8311f7a..816a5c11f15 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -189,7 +189,7 @@ aioaquacell==0.2.0
 aioaseko==1.0.0
 
 # homeassistant.components.asuswrt
-aioasuswrt==1.4.0
+aioasuswrt==1.5.1
 
 # homeassistant.components.husqvarna_automower
 aioautomower==2.2.1
diff --git a/tests/components/asuswrt/test_init.py b/tests/components/asuswrt/test_init.py
index 72897b737e5..9c4b2c0d9a2 100644
--- a/tests/components/asuswrt/test_init.py
+++ b/tests/components/asuswrt/test_init.py
@@ -26,5 +26,5 @@ async def test_disconnect_on_stop(hass: HomeAssistant, connect_legacy) -> None:
     hass.bus.async_fire(EVENT_HOMEASSISTANT_STOP)
     await hass.async_block_till_done()
 
-    assert connect_legacy.return_value.connection.disconnect.call_count == 1
+    assert connect_legacy.return_value.async_disconnect.await_count == 1
     assert config_entry.state is ConfigEntryState.LOADED