title: Computer Engine show normal, but all ports are unavailable
body: <p>Why does the instance in my Computer Engine show normal, but all ports are unavailable, and a few hours ago, all functions were normal</p>
  <p>A few days ago, my instance was attacked. Google sent me an email telling me that my instance was conducting mining activities and the resources were suspended. After I appealed, I deleted the instance and then recreated it. Now every time I create an instance , The instance can only be used for a few hours, then all the ports of the instance are unavailable, and the IP cannot be pinged</p>
  <p>If someone could tell me what to do, I would really appreciate him</p>