diff --git a/homeassistant/components/huawei_lte/__init__.py b/homeassistant/components/huawei_lte/__init__.py
index f21f084a544..929ca0193af 100644
--- a/homeassistant/components/huawei_lte/__init__.py
+++ b/homeassistant/components/huawei_lte/__init__.py
@@ -143,9 +143,11 @@ class Router:
     url: str
 
     data: dict[str, Any] = field(default_factory=dict, init=False)
-    subscriptions: dict[str, set[str]] = field(
+    # Values are lists rather than sets, because the same item may be used by more than
+    # one thing, such as MonthDuration for CurrentMonth{Download,Upload}.
+    subscriptions: dict[str, list[str]] = field(
         default_factory=lambda: defaultdict(
-            set, ((x, {"initial_scan"}) for x in ALL_KEYS)
+            list, ((x, ["initial_scan"]) for x in ALL_KEYS)
         ),
         init=False,
     )
diff --git a/homeassistant/components/huawei_lte/binary_sensor.py b/homeassistant/components/huawei_lte/binary_sensor.py
index a1a26b51657..2d96a4e0426 100644
--- a/homeassistant/components/huawei_lte/binary_sensor.py
+++ b/homeassistant/components/huawei_lte/binary_sensor.py
@@ -65,7 +65,9 @@ class HuaweiLteBaseBinarySensor(HuaweiLteBaseEntityWithDevice, BinarySensorEntit
     async def async_added_to_hass(self) -> None:
         """Subscribe to needed data on add."""
         await super().async_added_to_hass()
-        self.router.subscriptions[self.key].add(f"{BINARY_SENSOR_DOMAIN}/{self.item}")
+        self.router.subscriptions[self.key].append(
+            f"{BINARY_SENSOR_DOMAIN}/{self.item}"
+        )
 
     async def async_will_remove_from_hass(self) -> None:
         """Unsubscribe from needed data on remove."""
diff --git a/homeassistant/components/huawei_lte/device_tracker.py b/homeassistant/components/huawei_lte/device_tracker.py
index b8833b24d92..665c96e4888 100644
--- a/homeassistant/components/huawei_lte/device_tracker.py
+++ b/homeassistant/components/huawei_lte/device_tracker.py
@@ -90,8 +90,8 @@ async def async_setup_entry(
     async_add_entities(known_entities, True)
 
     # Tell parent router to poll hosts list to gather new devices
-    router.subscriptions[KEY_LAN_HOST_INFO].add(_DEVICE_SCAN)
-    router.subscriptions[KEY_WLAN_HOST_LIST].add(_DEVICE_SCAN)
+    router.subscriptions[KEY_LAN_HOST_INFO].append(_DEVICE_SCAN)
+    router.subscriptions[KEY_WLAN_HOST_LIST].append(_DEVICE_SCAN)
 
     async def _async_maybe_add_new_entities(unique_id: str) -> None:
         """Add new entities if the update signal comes from our router."""
diff --git a/homeassistant/components/huawei_lte/sensor.py b/homeassistant/components/huawei_lte/sensor.py
index 133b569c751..a4321bfd93f 100644
--- a/homeassistant/components/huawei_lte/sensor.py
+++ b/homeassistant/components/huawei_lte/sensor.py
@@ -724,9 +724,9 @@ class HuaweiLteSensor(HuaweiLteBaseEntityWithDevice, SensorEntity):
     async def async_added_to_hass(self) -> None:
         """Subscribe to needed data on add."""
         await super().async_added_to_hass()
-        self.router.subscriptions[self.key].add(f"{SENSOR_DOMAIN}/{self.item}")
+        self.router.subscriptions[self.key].append(f"{SENSOR_DOMAIN}/{self.item}")
         if self.entity_description.last_reset_item:
-            self.router.subscriptions[self.key].add(
+            self.router.subscriptions[self.key].append(
                 f"{SENSOR_DOMAIN}/{self.entity_description.last_reset_item}"
             )
 
diff --git a/homeassistant/components/huawei_lte/switch.py b/homeassistant/components/huawei_lte/switch.py
index 2fe064d6300..f75cf14e89b 100644
--- a/homeassistant/components/huawei_lte/switch.py
+++ b/homeassistant/components/huawei_lte/switch.py
@@ -69,7 +69,7 @@ class HuaweiLteBaseSwitch(HuaweiLteBaseEntityWithDevice, SwitchEntity):
     async def async_added_to_hass(self) -> None:
         """Subscribe to needed data on add."""
         await super().async_added_to_hass()
-        self.router.subscriptions[self.key].add(f"{SWITCH_DOMAIN}/{self.item}")
+        self.router.subscriptions[self.key].append(f"{SWITCH_DOMAIN}/{self.item}")
 
     async def async_will_remove_from_hass(self) -> None:
         """Unsubscribe from needed data on remove."""