cant ssh to a ec2 instance created by autoscaling group for a ecs

Question

Hello,

i 'm using the default vpc/subnets/secrurity group to host ec2 of a ecs via an autoscaling group. the ssh key is ok. i even tried to generate a new key and sent it by this command

```
aws ec2-instance-connect send-ssh-public-key
```
it was successful.
but still, I can't SSH to this instance 
via classic SSH command 
![Enter image description here](/media/postImages/original/IMmbTRc_tvSP6welwfRpl8jA)

via EC2 Instance Connect or EC2 Instance Connect Endpoint
![Enter image description here](/media/postImages/original/IMwMNfoj_wQpuD0wH9UM_eSQ)

this is a knowing issue ? is there any particular confs to enable ssh? 
thank you for your help

Answer

Hi,

There are several reasons why it can fail when trying to connect to an EC2 instance using Amazon EC2 Instance Connect, so I recommend you take a look at the following [AWS Knowledge Center article](https://repost.aws/knowledge-center/ec2-instance-connect-troubleshooting#), which not only describes the most common issues , but also how to resolve it.

cant ssh to a ec2 instance created by autoscaling group for a ecs

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