Im andy from Indonesia, I have web server for my Taxi's web services, im using wamp server and after installing it I make NAT forwading in my mikrotik and suddenly all my PC clients in my office getting a IIS7 or 404 Error and blank page. Maybe this is because port 80 which used in my NAT rule is being used by IIS7. So IIS7 blocked all http sites. I have 4 Public IP, and My web server has it own ip public 126.96.36.199 and local ip 192.168.0.86 use ether 2 for it's interface. Three other Public IP also use ether 1, 3, 4. Ether 1 use for Front Office (202.xxx.xxx.210) Ether 3 for 2nd floor (202.xxx.xxx.211), ether 4 is for side building (202.xxx.xxx.212) and ether 5 for wifi. The problem is that after try to forward port 80 to ther server IP (ether2) the rest of the internal network can't access web pages (HTTP) suppose that happen because the router forwards all traffic on port 80. Please If anyone who see this thread could help me to fix my problem.