Possible reasons for timeout when trying to access EC2 instance

ssh amazon-ec2 amazon-web-services
ming yeow picture ming yeow · May 11, 2010 · Viewed 104.5k times · Source

I cannot SSH into my instance - Operation timed out. What could be the reasons why, and what can I do to resolve it? Rebooting normally takes a long time to take effect, and might just makes things worst

UPDATE: It is not about permissions - i can log in normally just fine. I suspect it might be because of memory issues

Answer

ted.strauss picture ted.strauss · Feb 21, 2013

I had the same problem, and the solution ended up being adding my local machine's IP to the list of inbound rules in the active security group. In the inbound dialog below, enter 22 in the port range, your local IP/32 in the source field, and leave 'custom tcp rule' in the dropdown.

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