[android-developers] Data connectivity problem.Server failed to communicate

Can any body tell me why this is happening..Whenever i try to open a
website located in the intranet server,(or even a local machine with
tomcat web server) i get this message...Data connectivity
problem..Server failed to communicate.Please try again later...
The browser works fine for all other websites..i tried
google,youtube,yahoo,etc..all of them worked fine..
Do i need to set any other value in the emulator??
Any one else got the same problem??