diff --git a/zigpy_deconz/api.py b/zigpy_deconz/api.py
index 0cf8545..0d6e9bc 100644
--- a/zigpy_deconz/api.py
+++ b/zigpy_deconz/api.py
@@ -73,6 +73,7 @@ class DeviceState(t.Struct):
 class FirmwarePlatform(t.enum8):
     Conbee = 0x05
     Conbee_II = 0x07
+    Conbee_III = 0x09
 
 
 class FirmwareVersion(t.Struct, t.uint32_t):
@@ -689,6 +690,21 @@ async def _data_poller(self):
                     status=rsp["status"], device_state=rsp["device_state"]
                 )
 
+    def _handle_device_state(
+        self,
+        status: t.Status,
+        device_state: DeviceState,
+        reserved1: t.uint8_t,
+        reserved2: t.uint8_t,
+    ) -> None:
+        if (
+            self.firmware_version.platform == FirmwarePlatform.Conbee_III
+            and self.firmware_version == 0x26450900
+        ):
+            # Initial firmware for the device accidentally used the `device_state`
+            # command instead of `device_state_changed` to indicate state changes
+            self._handle_device_state_changed(status=status, device_state=device_state)
+
     def _handle_device_state_changed(
         self,
         status: t.Status,
@@ -704,6 +720,7 @@ def _handle_device_state_changed(
 
         self._device_state = device_state
         self._data_poller_event.set()
+        LOGGER.debug("Poking data poller")
 
         if (
             DeviceStateFlags.APSDE_DATA_REQUEST_FREE_SLOTS_AVAILABLE
diff --git a/zigpy_deconz/zigbee/application.py b/zigpy_deconz/zigbee/application.py
index ff77633..fc17d2e 100644
--- a/zigpy_deconz/zigbee/application.py
+++ b/zigpy_deconz/zigbee/application.py
@@ -171,7 +171,10 @@ async def change_loop():
                 " 2.4GHz routers, motherboards, etc."
             )
 
-        if self._api.protocol_version < PROTO_VER_WATCHDOG:
+        if self._api.protocol_version < PROTO_VER_WATCHDOG or (
+            self._api.firmware_version.platform == FirmwarePlatform.Conbee_III
+            and self._api.firmware_version == 0x26450900
+        ):
             return
 
         if self._reset_watchdog_task is not None:
@@ -286,6 +289,9 @@ async def write_network_info(self, *, network_info, node_info):
         await self._change_network_state(NetworkState.CONNECTED)
 
     async def load_network_info(self, *, load_devices=False):
+        if self._api.firmware_version.platform == FirmwarePlatform.Conbee_III:
+            await self._change_network_state(NetworkState.CONNECTED)
+
         network_info = self.state.network_info
         node_info = self.state.node_info
 
@@ -601,7 +607,11 @@ def __init__(self, version: FirmwareVersion, device_path: str, *args):
         super().__init__(*args)
         is_gpio_device = re.match(r"/dev/tty(S|AMA|ACM)\d+", device_path)
         self._model = "RaspBee" if is_gpio_device else "ConBee"
-        self._model += " II" if version.platform == FirmwarePlatform.Conbee_II else ""
+        self._model += {
+            FirmwarePlatform.Conbee: "",
+            FirmwarePlatform.Conbee_II: " II",
+            FirmwarePlatform.Conbee_III: " III",
+        }[version.platform]
 
     async def add_to_group(self, grp_id: int, name: str = None) -> None:
         group = self.application.groups.add_group(grp_id, name)