A message that reads "page cannot be displayed" can be as a result of poorly configured MAC address controls, poor internet connection, modified hosts file or a corrupt Winsock. To troubleshoot the problem, one must first know its exact cause.
Troubleshooting internet connections can help determine the cause. If a person is using a wireless connection, he can use another computer to see if it has the same problem. Checking MAC address controls and settings to ensure they are properly configured is also necessary. Networks diagnostic tools can be used to solve connectivity problems. A person can also get a tool, such as LPS-Fix, to repair LPS issues then reboot the computer.