Web Interfaces not opening even after Port Forwarding is said to be working !

Hi guys ... I'm encountering this strange problem which has baffled me to the ground, and which I haven't encountered even after years of doing port forwarding .. ! I am hoping somebody here can help me solve this mystery ..

My network configuration is as follows:

I have a DSL modem (custom made and branded by my ISP) which is receiving a DSL stream ... it has an external IP which is visible to the world, say, 11.22.33.44 ... This modem has DHCP enabled, has an internal IP for itself, which is 192.168.1.1 .. it is connected to 2 laptops via and ethernet cable .. Laptop 1 has IP 192.168.1.2, and Laptop 2 has IP 192.168.1.3 ...

On Laptop 1, JDownloader is running, which has its web interface open on port 8765 (using JD WebInterface addon) ... I can access this web interface from Laptop 2 by opening this address: 192.1681.2:8765 ... the web interface opens up, meaning the web interface is working fine ..

Moving on, I now want to access this web interface from outside my network as well, and so I've configured port forwarding in my modem to forward all traffic on ports between 8000 and 14000 (both TCP and UDP) to IP 192.168.1.2 ... I have verified that port forwarding is working by testing it using PortForward.com's port checker tool, and this website too: **External links are only visible to Support Staff****External links are only visible to Support Staff**

When I use the website, if I'm running the applications on Laptop 2, the website reports that the port is open .. if I then close the application, the website reports the port is closed ... This makes sense as nothing is listening on my machine in the latter case .. Also, if I disable port forwarding in my modem, again, the website reports the port is closed ... so, the website's results seem to be okay ...

Same of the above can be said when I'm used PortForward.com's port checker tool ... So again, everything okay so far ...

Now, here comes the problem !! ... Despite the above tools reporting that port forwarding is working, I am unable to open the web interface from outside my network ... So for example, if I tried to browse 11.22.33.44:8765, nothing opens in my browser ... But if I accessed the web server locally from Laptop 3 by typing in 192.168.1.2:8765, it opened ...

So where is the problem here ?? The tools report unanimously that port forwarding is working, and yet I am unable to open the web interfaces from outside the network ..

Also note that I have disabled the firewall from my computer, and have also made sure that any option in the above programs (whose web interfaces I am trying to open) that says only local connections are to be accepted, is disabled ...

So whats the problem ... ?!! Any ideas ??

Disabling the firewall on your computer might not enable the traffic between jD and your external computer. Configure your firewall properly or un-install it to be sure that it doesn't block the traffic.

I just took out the firewall completely (uninstalled it), and still its the same result .. :(

Are you running any other services (a small web server for instance) on your computer that you can't access from an external computer?