Error while connecting AWS EC2 instance via a browser

Question

I am trying to connect to an EC2 instance using a browser.  But I am actually getting an error. The browser is showing the message "connection is timed out". Alternatively, I am using ssh and WinSCP to connect to the instance. I am able to do so successfully. So, what is the issue here? 

Do i have to change security groups?

Answer 1

Even I was facing the same issue. I was using ec2 micro instance and Red-Hat AMI. Even after opening ports 8081 in the security group, I was not able to telnet to the host port. 

So, I tried to disable the iptable, it somehow worked. Its not a proper solution but will do until you find one.

sudo /etc/init.d/iptables stop