Help Center/Elastic Cloud Server/FAQs/Password and Key Pair/What Should I Do If the System Displays a Message Indicating that the Password Is Incorrect When I Attempt to Remotely Log In to My ECS?
Updated on 2026-02-28 GMT+08:00
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What Should I Do If the System Displays a Message Indicating that the Password Is Incorrect When I Attempt to Remotely Log In to My ECS?

Solution

Check the ECS network configuration and determine whether the incorrect password issue is caused by Cloud-Init invalidity.
  • Verify that port 80 is bypassed in both inbound and outbound directions in the security group to which the target ECS belongs.
    Figure 1 Port 80
  • Verify that DHCP is enabled in the subnet to which the target ECS belongs.
    Figure 2 Checking DHCP status

    After verifying the preceding configurations, restart the ECS, wait for 3 to 5 minutes, and remotely log in to the ECS using a password or key.