The webpage is unavailable because of working on offline.

Read belo articles...

 

 

https://www.google.co.in/url?sa=t&rct=j&q=&esrc=s&source=web&cd=8&cad=rja&uact=8&ved=0CFgQtwIwBw&url=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3Dusy8N-7OLC0&ei=FcdeVd3SKc-WuATngoOADQ&usg=AFQjCNHjgIuVAPCNF9-DFEPyj-nkWtTjNw&sig2=7uRbh1RmxzAj-irwgoprBg&bvm=bv.93990622,d.c2E

 

 

http://answers.microsoft.com/en-us/ie/forum/ie8-windows_vista/connected-to-internet-but-ie8-says-the-webpage-is/b3594e6f-6598-475c-a5f0-1599ed31829c