This topic describes how to disconnect the ClassicLink connection between a classic-network ECS instance and a VPC. After you disconnect the ClassicLink connection, the classic-network ECS instance and the VPC can no longer communicate with each other.


  1. Log on to the ECS console.
  2. In the left-side navigation pane, choose Instances & Images > Instances.
  3. Select the region to which the target classic-network ECS instance belongs.
  4. On the Instances page, find the target classic-network ECS instance, and then choose More > Network and Security Group > Set classic link in the Actions column.
  5. In the Disconnect from VPC dialog box, click OK.