ERROR: "Connection timed out"

Question

I'm having trouble with establishing a SSH connection from my local machine using Git bash to AWS EC2 ubuntu instance.
Every time same error occurs "Connection timed out".
My local machine is windows 11 home single language & have basic AWS account.
Could someone please help me understand why I'm getting this error and how to resolve it? Here's the error message I'm seeing:

ssh -i "my_key.pem" ubuntu@my_public_ip.compute.amazonaws.com

**Error**: ssh: connect to host my_public_ip.ap-south-1.compute.amazonaws.com port 22: Connection timed out

Any guidance would be appreciated. Thank you!

**NOTE**:  Above, I changed my original public IP address for security purpose.

Answer

Hello.

Since it is a timeout error, please check whether SSH is allowed in the inbound rules of the EC2 security group.  
Also, please check that the IP address of EC2 is correct and that communication is not denied by the network ACL of the subnet where EC2 is running.  
General troubleshooting methods are described in the document below, so please read it once.  
https://repost.aws/knowledge-center/ec2-linux-resolve-ssh-connection-errors

ERROR: "Connection timed out"

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