ec2 instance not responsive

Question

I am unable to connect to my ec2 instance suddenly.
It was working and all status checks seems passed.
I can even ping the ec2 instance. But, could not ssh into the machine.

Answer

What is the error you're getting when trying to ssh to your EC2 instance? If it's connection timeout, most likely it's because of the security group, NACL or other firewalls.

Please refer to [https://repost.aws/knowledge-center/ec2-linux-ssh-troubleshooting](https://repost.aws/knowledge-center/ec2-linux-ssh-troubleshooting) for troubleshooting steps, including further links for common errors when connecting to Amazon EC2 Linux instance using SSH.

Answer

Hi,

to simplify your issue, you should start to reach it with InstanceConnect: see https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/connect-linux-inst-eic.html

If you have issues, this guidance will detail how to troubleshoot: https://repost.aws/knowledge-center/ec2-instance-connect-troubleshooting

Best,

Didier

ec2 instance not responsive

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