Possible reasons for timeout when trying to access EC2 instance

Question

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, an

Answer 1

I had the same problem, and the solution was allowing access from anywhere to the list of inbound rules in the active security group. In the inbound dialog, enter 22 in the port range, anywhere in the source field, and select 'ssh' in the dropdown.

P.S : This might not be the recommended solution as it means this instance can be ssh'ed from any machine, but I could not get it to work with my local IP.