Well this might sound awkward but I facing terrible issue with my Amazon EC2 instance

one of the finding I see is that apache is not responding on port 80 which is weird because I can't even find the incoming packet to port 80 in tcpdump output

As per the security rules all security rules are in place correctly at least in amazon console

I restarted the apache to listen to port 8080 and added port 8080 and add 8080 to security rule and everything work but I cant just able to understand as to why the port 80 not responding

Needless to say since port 8080 is responding all my CNAME and A-record is working too

UPDATE

No firewall issue either I just cross check the iptables and list is empty

Can some share a light on this