issue connecting EC2 instance

If you have not, I recommend following the below troubleshooting article to identify the root cause/fix the issue. The troubleshooting steps listed in the article are as follows:

1. Verify that EC2 Instance Connect supports your instance's Linux distribution.
2. Verify that your supported instance has the EC2 Instance Connect package installed.
3. Verify that the IAM user trying to use EC2 Instance Connect has permission to push the public key to the instance.
4. Verify that the instance's security group rules list EC2 Instance Connect IPs:

Reference

• How do I troubleshoot issues connecting to my EC2 instance using EC2 Instance Connect?