The Web site cannot be found (288)

The Web site you are trying to access has an IP address that is configured not to accept requests that specify a port number.

Please try the following:

  • Make sure that the Web site address displayed in the address bar of your browser is spelled and formatted correctly.
  • If you reached this page by clicking a link, contact the Web site administrator to alert them that the link is incorrectly formatted.
  • Click the Back button to try another link.

HTTP Error 404.1 - File or directory not found: Web site not accessible on the requested port.
Internet Information Services (IIS)


Technical Information (for support personnel)

  • Go to Microsoft Product Support Services and perform a title search for the words HTTP and 404.
  • Open IIS Help, which is accessible in IIS Manager (inetmgr), and search for topics titled Hosting Multiple Web Sites on a Single Server, Port Assignments for Internet Services, and About Custom Error Messages.