I am using Windows 7 Pro 64, and I am trying to run a web server on it. It listens to the port 80 on the ip address 192.168.1.132 (the IP addres of my computer in the home network). The server says everything is OK, netstat -ano | find ":80" | find "LISTENING" gives TCP 192.168.1.132:80 0.0.0.0:0 LISTENING 5804 when the server is running and gives nothing otherwise. The service called "Windows Firewall" is not running. Anti-virus software is not running. When I enter "http://192.168.1.132/" in my browser, I see the homepage of my server. But when I enter "http://192.168.1.132/" in the browser of any other computer in my home network, it says that it cannot connect, and telnet 192.168.1.132 80 cannot esteablish a connection. The server does not see any attempt to connect to it in this case. If I tell the server to use port 81 instead of 80, everything becomes OK. How to make it possible to connect to the port 80 form the local network? upd. The problem disappears if I stop the service named "Base Filtering Engine", but if I stop it, Windows Firewall and two other services that deal with IPSec are also stoped. If I explicitly allow all connections to port 80 in windows firewall additional configuration, the problem presists. Is it possible to allow inbound connections to tcp port 80 without disabling the firewall?

Which process is listing in the 80 port? On our test machines it is System service. You may enter the command “tasklist” to check it out. Why not consider using port 81 as the listing port?Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Process that is listening port 80 is my server, it has PID=5804 in the output in the original post, while System process usually has PID=4. Port 81 works well, but I want to find out where is the problem.