Make sure that you have the correct software installed to connect to the network and that you have configured the client computers correctly. You cannot install a hardware device. Make sure that you have installed devices correctly. Incompatible hardware devices or device drivers can also cause problems. You cannot access a drive or other device attached to the computer.
Several problems can prevent devices from working properly.
The connecting cables can become loose. A resource conflict can prevent a device from working. Missing or corrupted drivers can prevent the computer from recognizing devices that are installed. Incompatible hardware devices or device drivers can also cause problems. You installed a second monitor, but there is no display, or the display is distorted.