93Troubleshooting (Advanced)Cannot eject a disc. z Turn on the computer.To remove a disc when the computer is poweredoff, insert a pin of 1.3 mm {0.05″} in diameter intothe emergency hole (A). (When the diameter of thepin is smaller than this, insert the pin slightly down-ward.) Pushing it completely to the end will free thetray so that it can be pulled out. (The position of theemergency hole differs depending on the drive.)The disc tray does not close. z Do not touch the eject button when closing the tray.Other disc operation problems. z Use another drive or media. NetworkCannot connect to a network. z Set [LAN] / [Modem] to [Enabled] in the [Advanced] menu of the Setup Utility(Î page 76).Cannot check the computer’s MACaddress.z Follow the steps below.A Click [start] - [All Programs] - [Accessories] - [Command Prompt].B Input “ipconfig /all”, and press Enter.C Wireless LAN’s MAC address:Make a note of the 12-digit string of alphanumeric displayed on“Physical Address” line of “Intel(R) Wireless WiFi Link 5100”.Wired LAN’s MAC address:Make a note of the 12-digit string of alphanumeric displayed on“Physical Address” line of “Intel(R) 82567LM Gigabit Network Con-nection”.D Input “exit”, and press Enter. Wireless Communication (only for model with wireless LAN/Bluetooth/wirelessWAN)Cannot connect to a network. z Slide the wireless switch to turn on the wireless devices.z Set the device ([Wireless LAN] / [Bluetooth] / [Wireless WAN]) to [Enabled] inthe [Advanced] menu of the Setup Utility (Î page 76).z Disable the Wireless Connection Disable Utility (Î page 65).z Restart the computer. Disc OperationA