Unable to connect to EC2 instance


Unable to connect to the ec2 instance that had already been worked before, the abnormal behavior only the CPU utilization was very high, due to the docker image build Enter image description here I have checked the following: security group SSH port subnet routing table firewall is disabled

asked 2 months ago124 views
1 Answer


If the EC2 security group or network ACL is not the cause, the EC2 CPU load may be the problem.
Please restart EC2 and check if you can SSH.
If you check the EC2 system log, you will probably see some errors.

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answered 2 months ago
  • I have restart it, facing the same issue, the only way to connect to it through the serial connection, inside the machine I'm trying to ping any server it's fully isolated

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