Ok, I keep having the same problem dispite my many attempts at a solution. I'm trying to put a openSUSE 10.2 box online as a web server, however I also have to try to keep my wireless Windows based network online. Here's my problem :

I have a modem, a 10/100 wireless router and a wired 10T router. I initally just hooked up the wireless router to the modem and connected my linux box to there. All computers were online, however because the wireless router i have is a Microsoft MN700 router it has a built in firewall that I can't seem to disable no matter what I do. This prevents the linux box from being reached and doing it's job as a web server.

So then I connected a wired router between the modem and the wireless router and plugged the linux box into the wired router. The wireless network works fine but the linux box isn't online and can't find the internet. I tried resetting the network but still got the same results.

Have you setup the router to enable a port-forward connection from the external IP port 80 to the linux IP port 80?

Once that is done you can goto here and use the advance port scan to see if the port is open. http://www.hackerwatch.org/probe/

One thing to remember is if you are on a lan machine and enter the external IP to try to access the web server then this will 95% of the time not work. It needs to be tested from a remote site using the external IP. Reason is the store bought routers lack the ability to be configured in a precise way.

Brian