core/homeassistant/components/wiffi/strings.json

{
  "config": {
    "step": {
      "user": {
        "title": "Setup TCP server for WIFFI devices",
        "data": {
          "port": "Server Port"
        }
      }
    },
    "abort": {
      "addr_in_use": "Server port already in use.",
      "start_server_failed": "Start server failed."
    }
  }
}