Apache, nginx configuration of the site 127.0.0.1 can be normal access, the IP address of the network cannot access, who's pot?

Recently did the development, found a more awkward problem. Because I am a web developer, often use Apache or Nginx and other server software, after my test found that as long as I opened the adsafe, I can not access my local website through the IP address, such as my native IP is 192.168.1.100, Nginx configuration port is 7000, I am in the browser input 127.0.0.1:7000 or localhost:7000, can be normal access, but the input http://192.168.1.100:7000 will prompt:

Unable to connect

Firefox cannot establish a connection to the 192.168.1.100:7000 server.

This site is temporarily unavailable or too busy. Please try again later.
If you are unable to load any pages, check your computer's network connection.
If your computer or network is protected by a firewall or proxy server, make sure that Firefox is authorized to access the network.
Once I turn off the adsafe,http://192.168.1.100:7000 can be accessed normally.

After a long time to find out, unexpectedly is one of my favorite software--adsafe (advertising butler) of the pot, as long as I open adsafe,http://192.168.1.100:7000 will not be able to access, shut down, all OK.

Apache, nginx configuration of the site 127.0.0.1 can be normal access, the IP address of the network cannot access, who's pot?