Assessments - 3, GPA: 4.3
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. Click Network and Internet Connections. . Click the Network Connections icon. . Right-click the Wireless Network Connection icon and select Properties. . Select the Wireless Networks tab. . Check if the Access Point is displayed in Available networks. . Connection availability is affected by distance and obstructions. You may need to move the computer away from obstructions or neared to any Access Point you may be using. 134134nN Troubleshooting The data transfer speed is slow . The maximum communication speed can vary depending on the obstacles or the distance between the communication devices, the radio waves, the operating system or the software you use. Remove the obstacle or make the distance between the Access Point and your machine smaller. . It is possible that your Access Point communicates at the same time with another Access Point. Read the manual of the Access Point. . If several computers communicate with the same Access Point, the concentration may be too high. Wait a few minutes and try to access again. . If a Wireless LAN device using the IEEE802.11g standard communicates with a device using the IEEE802.11b standard, then it is normal that the speed reduces. Devices using the IEEE802.11g standard are 5 times faster than the ones using the IEEE802.11b standard. I cannot access the Internet . Check the settings of the Access Point. See the manual of the Access Point. . Check if the computer and the Access Point are communicating. . Make the distance between the Access Point and your machine smaller. 135135nN Troubleshooting I cannot use a Wireless LAN network Check if the Wireless Zero Configuration service is active. To check the status of the Wireless Zero Configuration service 1 Click Start and then Control Panel. The Control Panel window appears. 2 Click the Performance and Maintenance icon. 3 Click the Administrative Tools icon. 4 Double-click the Services icon. The Services window appears. 5 Check Status and Startup Type for Wireless Zero Configuration. When Started and Automatic are shown under Status and Startup Type, respectively, the Wireless Zero Configuration service is active. To activate the Wireless Zero Configuration service 1 On the Services window, right-click Wireless Zero Configuration and click Properties. The Wireless Zero Configuration Properties window appears. 2 Select Automatic for Startup type and click Apply. 3 Click Start under Service status. 4 Click OK to close the window. 136136nN Troubleshooting Troubleshooting Power Management The power management setting is not responding The computer's operating system may become unstable if a lower power state, such as Hibernate is initiated, and then changed before the computer completely enters the lower power state. To restore the computer to its normal operating stability 1 Close all open applications. 2 Press the Ctrl+Alt+Delete keys simultaneously and select Restart from the shut down menu drop-down list. The computer restarts. 3 If the procedure does not work, press and hold the power button for four seconds or longer to shut down the computer. 137137nN Troubleshooting Troubleshooting External Displays I cannot use the Plug and Display function Depending on the external display or the way it is connected, the Plug and Display function may not be available. Use the Fn+F7 keys to select the output destination. I cannot display contents on two or more displays at the same time You cannot display contents on multiple external displays at the same time. Select one of the external displays. 138138nN Troubleshooting The external display with the DVI-D port does not display properly This troubleshooting entry applies to selected models only. See Locating Controls and Ports (page 13) to see whether your model is equipped with the DVI-D port. If your computer is supplied with a port replicator, the port replicator may also have the DVI-D port. See the printed Troubleshooting Guide first to solve your problems. If the problem persists, proceed as follows: 1 Click Start and then Control Panel. The Control Panel window appears. 2 Click the Appearance and Themes icon. 3 Click the Display icon. The Display Properties window appears. 4 Click the Settings tab. 5 Click Advanced. The properties window appears. 6 Click Options. 7 Confirm that the button for Alternate DVI operational mode is selected. If not, click to check the button. 8 Click to check the button for Reduce DVI frequency on high-resolution displays. The warning message window appears. 9 Click Yes. 10 Click Yes once again. ! Click to check the above button only if the external display with the DVI-D port does not display properly with the default settings. The external display with the DVI-D port does not display the boot-up screen and the BIOS setup screen at startup. To change the BIOS settings, use the computer's LCD screen. 139139nN Troubleshooting Troubleshooting Sound (Speaker) My speakers are not producing sound . The built-in speakers may be turned off. Press th...
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