Cannot add a bridged Accessory with the same UUID as another bridged Accessory
I got this error when homebridge restart. It seems I get rid of it after setting static IP address to the plugs.


### Current Behavior
The docker image crash at launch and restart (in loop) until I delete the accessories folder

### Steps to Reproduce (for bugs)
Restart the docker Image

### Versions
<!-- Please run commands and include versions below. -->
- **Node**:       `8.9.1`
- **Homebridge**: `0.4.33`
- **OS**:        Synology (oznu - docker - https://hub.docker.com/r/oznu/homebridge/ )

### Configuration

{
    "bridge": {
        "name": "Homebridge",
        "username": "BLABLA",
        "port":1234,
        "pin": "BLABLA"
    },

    "description": "This is an example configuration file. You can use this as a template for creating your own configuration file containing devices you actually own.",

    "accessories": [
    ],

    "platforms": [
       	{
   		"platform": "HarmonyHub",
   		"name": "NicoHarmonyHub"
   		}
    ]
}

### Homebridge Log / Command Output

2017-12-03 06:50:20 | stdout | Disconnected from D-Bus, exiting.
-- | -- | --
2017-12-03 06:50:20 | stdout | at Socket.<anonymous> (/homebridge/node_modules/tplink-smarthome-api/lib/client.js:627:16)
2017-12-03 06:50:20 | stdout | at Client.createOrUpdateDeviceFromSysInfo (/homebridge/node_modules/tplink-smarthome-api/lib/client.js:686:12)
2017-12-03 06:50:20 | stdout | at Client.emit (/homebridge/node_modules/tplink-smarthome-api/lib/client.js:350:18)
2017-12-03 06:50:20 | stdout | at Client.emit (events.js:211:7)
2017-12-03 06:50:20 | stdout | at emitOne (events.js:116:13)
2017-12-03 06:50:20 | stdout | at Client.TplinkSmarthomePlatform.client.on (/homebridge/node_modules/homebridge-tplink-smarthome/lib/platform.js:60:12)
2017-12-03 06:50:20 | stdout | at TplinkSmarthomePlatform.addAccessory (/homebridge/node_modules/homebridge-tplink-smarthome/lib/platform.js:117:27)
2017-12-03 06:50:20 | stdout | at new PlugAccessory (/homebridge/node_modules/homebridge-tplink-smarthome/lib/plug.js:57:16)
2017-12-03 06:50:20 | stdout | at TplinkSmarthomePlatform.registerPlatformAccessory (/homebridge/node_modules/homebridge-tplink-smarthome/lib/platform.js:83:14)
2017-12-03 06:50:20 | stdout | at API.registerPlatformAccessories (/usr/local/share/.config/yarn/global/node_modules/homebridge/lib/api.js:159:8)
2017-12-03 06:50:20 | stdout | at API.emit (events.js:211:7)
2017-12-03 06:50:20 | stdout | at emitOne (events.js:116:13)
2017-12-03 06:50:20 | stdout | at Server.<anonymous> (/usr/local/share/.config/yarn/global/node_modules/homebridge/lib/server.js:41:10)
2017-12-03 06:50:20 | stdout | at Server._handleRegisterPlatformAccessories (/usr/local/share/.config/yarn/global/node_modules/homebridge/lib/server.js:451:16)
2017-12-03 06:50:20 | stdout | at Bridge.Accessory.addBridgedAccessories (/usr/local/share/.config/yarn/global/node_modules/hap-nodejs/lib/Accessory.js:284:10)
2017-12-03 06:50:20 | stdout | at Bridge.Accessory.addBridgedAccessory (/usr/local/share/.config/yarn/global/node_modules/hap-nodejs/lib/Accessory.js:258:13)
2017-12-03 06:50:20 | stdout | Error: Cannot add a bridged Accessory with the same UUID as another bridged Accessory: 2959c9a2-e0b8-4b07-be50-8673b2559f4e
2017-12-03 06:50:20 | stdout |  
2017-12-03 06:50:20 | stdout | ^
2017-12-03 06:50:20 | stdout | throw new Error("Cannot add a bridged Accessory with the same UUID as another bridged Accessory: " + existing.UUID);

