All five ports have been opened successfully with the exception of port 80. I have been using canyouseeme.org to check my ports and 80 is the only one that has had any problem.
Now, my router is set to DMZ. No firewalls, no antiviruses. Just a clean installation of Windows Server 2003 with windows firewall turned off.
However I notice the issue when I do the following:
1. I will see port 80 is blocked so I set my router to DMZ just to get it open.*
2. The port opens.
3. 15-20 seconds later the port is closed, and no traffic is allowed through.
4. All other ports (tested) are still open.
*Note: I am using DD-WRT firmware on my router. Every time I click apply on my router everything opens and then port 80 closes on it self.
Any ideas anyone?
Edited by xXAlphaXx, 25 August 2012 - 01:00 PM.