Basic Authentication using asp.net giving "Page cannot be displayed"

Hi,
I am getting erro as "Page can not be displayed" when i am logging to
my web site at first time through windows basci authentication.

I am using only Basic authentication.

after refresh i am able to get the first page of myweb site or after
when i close that IE instance once login successfully and try to
relogin its allowing me to view first page of my web site.

I am not able to trace this behaviour or this error Page can not be
displayed .

Can anyone help me in this regards

Thanks
Vijay Patil