Sony VAIO F22 VPCF22CFX User Manual

							141nN Troubleshooting >
Networking (LAN/Wireless LAN)
Networking (LAN/Wireless LAN)
What should I do if the VAIO Smart Network icon is not displayed on the taskbar?
❑Click   on the taskbar and check if the VAIO Smart Network icon   is displayed.
❑If the VAIO Smart Network icon   is not on the taskbar, click Start, All Programs, and VAIO Smart Network, and then 
change the setting to display the icon on the taskbar.
  
						

							142nN Troubleshooting >
Networking (LAN/Wireless LAN)
What should I do if my computer cannot connect to a wireless LAN access point?
❑Connection capability is affected by distance and obstructions. You may need to move your computer away from 
obstructions or closer to any access point you may be using.
❑Make sure the WIRELESS switch is on and the WIRELESS indicator light is lit on your computer.
❑Make sure power to the access point is on.
❑Follow these steps to check the settings:
1Click Start and Control Panel.
2Click View network status and tasks under Network and Internet.
3Click Connect to a network to confirm that your access point is selected.
❑Make sure the encryption key is correct.
❑Make sure Maximum Performance is selected for Wireless Adapter Settings in the Power Options window. Selecting 
any other option may result in a communication failure. To change the settings, follow these steps:
1Click Start and Control Panel.
2Click System and Security and Power Options.
3Click Change plan settings for the current power plan.
4Click Change advanced power settings.
5Double-click Wireless Adapter Settings and Power Saving Mode.
6Select Maximum Performance from the drop-down list.
  
						

							143nN Troubleshooting >
Networking (LAN/Wireless LAN)
What should I do if I cannot access the Internet?
❑Check the access point settings. See the manual that came with your access point for more information.
❑Make sure your computer and the access point are connected to one another.
❑Move your computer away from obstacles or closer to any access point you may be using.
❑Make sure your computer is properly configured for Internet access.
❑Make sure Maximum Performance is selected for Wireless Adapter Settings in the Power Options window. Selecting 
any other option may result in a communication failure. Follow the steps in What should I do if my computer cannot 
connect to a wireless LAN access point? (page 142) to change the settings.
 
Why is the data transfer speed slow?
❑The wireless LAN data transfer speed is affected by distance and obstructions between devices and access points. Other 
factors include device configurations, radio conditions, and software compatibility. To maximize the data transfer speed, 
move your computer away from obstacles or closer to any access point you may be using.
❑If you are using a wireless LAN access point, the device may be temporarily overloaded depending on how many other 
devices are communicating via the access point.
❑If your access point interferes with other access points, change the access point channel. See the manual that came with 
your access point for more information.
❑Make sure Maximum Performance is selected for Wireless Adapter Settings in the Power Options window. Selecting 
any other option may result in a communication failure. Follow the steps in What should I do if my computer cannot 
connect to a wireless LAN access point? (page 142) to change the settings.
  
						

							144nN Troubleshooting >
Networking (LAN/Wireless LAN)
How do I avoid data transfer interruptions?
❑While your computer is connected to an access point, data transfer interruptions may occur if a large file is exchanged or 
the computer is placed in close proximity to microwaves and cordless telephones.
❑Move your computer closer to the access point.
❑Make sure the access point connection is intact. 
❑Change the access point channel. See the manual that came with your access point for more information.
❑Make sure Maximum Performance is selected for Wireless Adapter Settings in the Power Options window. Selecting 
any other option may result in a communication failure. Follow the steps in What should I do if my computer cannot 
connect to a wireless LAN access point? (page 142) to change the settings.
 
What are channels?
❑Wireless LAN communication uses divided frequency bands known as channels. Third-party wireless LAN access point 
channels may be preset to different channels from Sony devices.
❑If you are using a wireless LAN access point, see connectivity information contained in the manual that came with your 
access point.
 
Why does the network connection stop when I change the encryption key?
Two computers with the wireless LAN function may lose a peer-to-peer network connection if the encryption key is changed. 
You can either change the encryption key back to the original profile or re-enter the key on both computers so the key 
matches.
    
						

							145nN Troubleshooting >
BLUETOOTH Technology
BLUETOOTH Technology
What should I do if other BLUETOOTH devices cannot find my computer?
❑Make sure both devices have the BLUETOOTH function enabled.
❑Make sure the WIRELESS switch is on and the WIRELESS indicator light is lit on your computer.
❑You cannot use the BLUETOOTH function while your computer is in a power saving mode. Bring the computer back to 
Normal mode, then turn on the WIRELESS switch.
❑Your computer and the device may be too far apart. Wireless BLUETOOTH technology works best when the devices are 
within 10 meters of each other.
 
What should I do if I cannot find the BLUETOOTH device I want to communicate with?
❑Check that the BLUETOOTH function of the device you want to communicate with is on. See the other devices manual 
for more information.
❑If the device you want to communicate with is already communicating with another BLUETOOTH device, it may not be 
found or it may not be able to communicate with your computer.
❑To allow other BLUETOOTH devices to communicate with your computer, follow these steps:
1Click Start and Devices and Printers.
2Right-click the BLUETOOTH device icon and click Bluetooth settings.
3Click the Options tab and select the Allow Bluetooth devices to find this computer check box.
  
						

							146nN Troubleshooting >
BLUETOOTH Technology
What should I do if other BLUETOOTH devices cannot connect to my computer?
❑Check the suggestions in What should I do if I cannot find the BLUETOOTH device I want to communicate with? 
(page 145).
❑Make sure the other devices are authenticated.
❑The data transfer distance can be shorter than 10 meters depending on existing obstacles between the two devices, on 
radio wave quality, and on the operating system or the software in use. Move your computer and BLUETOOTH devices 
closer to each other.
 
Why is my BLUETOOTH connection slow?
❑The data transfer speed depends on the obstructions and/or the distance between the two devices, on the radio wave 
quality, and on the operating system or the software in use. Move your computer and BLUETOOTH devices closer to each 
other.
❑The 2.4 GHz band, with which BLUETOOTH devices or wireless LAN devices work, is used by various devices. Although 
BLUETOOTH devices use the technology to minimize radio interference from other devices that use the same band, such 
radio interference may cause slower communication speeds and shor ter distances or communication failures.
❑If a version of a BLUETOOTH standard employed on the BLUETOOTH device with which you want to communicate is not 
the same version as the one employed on your computer, the communication speed becomes slower.
❑High-speed communications between your computer and BLUETOOTH devices are available when they are compliant 
with BLUETOOTH Core Specification Version 3.0 + HS. For the high-speed communications, enable both the wireless 
LAN and BLUETOOTH functions on the computer.
!Some BLUETOOTH profiles do not support high-speed communications.
  
						

							147nN Troubleshooting >
BLUETOOTH Technology
Can I use a device with BLUETOOTH technology on airplanes?
With BLUETOOTH technology, your computer transmits a radio frequency of 2.4 GHz. Sensitive locations, such as hospitals 
and airplanes, may have restrictions on use of BLUETOOTH devices to avoid radio interference. Check with facility staff to 
see if use of the BLUETOOTH function on the computer is permitted.
 
Why cant I use the BLUETOOTH function when I log onto my computer as a user with a 
standard user account?
The BLUETOOTH function may not be available to a user with a standard user account on your computer. Log onto the 
computer as a user with administrative rights.
 
Why cant I use the BLUETOOTH devices when I switch users?
If you switch users without logging off your system, the BLUETOOTH devices will not work. Be sure to log off before switching 
users. To log off your system, click Start, the arrow next to the Shut down button, and Log off.
 
Why cant I exchange business card data with a mobile phone?
The business card exchange function is not supported.
 
What should I do if the BLUETOOTH icon is not displayed on the taskbar?
❑Make sure that the switch next to BLUETOOTH is set to On in the VAIO Smart Network window.
❑To display the BLUETOOTH icon on the taskbar, follow these steps:
1Click Start and Devices and Printers.
2Right-click the BLUETOOTH device icon and click Bluetooth settings.
3Click the Options tab and select the Show the Bluetooth icon in the notification area check box. 
						

							148nN Troubleshooting >
Optical Discs
Optical Discs
Why does my computer freeze when I try to read a disc?
The disc that your computer is trying to read may be dirty or damaged. Follow these steps:
1Press the Ctrl+Alt+Delete keys and click the arrow next to the Shut down button and Restart to restart the computer.
!Turning off your computer with the Ctrl+Alt+Delete keys may cause loss of unsaved data.
2Remove the disc from the optical disc drive.
3Check the disc for dir t or damage. If you need to clean the disc, see Discs (page 114) for instructions.
 
What should I do if the drive tray does not open?
❑Make sure your computer is in Normal mode.
❑Press the drive eject button.
❑If the drive eject button does not work, click Start and Computer, right-click the optical disc drive icon, and select Eject.
❑If none of the above options work, insert a thin, straight object (such as a paper clip) into the manual eject hole on the 
optical disc drive.
❑Try restarting your computer.
  
						

							149nN Troubleshooting >
Optical Discs
What should I do if I cannot play a disc properly on my computer?
❑Make sure the disc is inserted into the optical disc drive with the label facing upward.
❑Make sure the necessary program(s) is installed according to the manufacturers instructions.
❑If a disc is dirty or damaged, your computer will stop responding. Follow these steps:
1Press the Ctrl+Alt+Delete keys and click the arrow next to the Shut down button and Restart to restart the computer.
!Turning off your computer with the Ctrl+Alt+Delete keys may cause loss of unsaved data.
2Remove the disc from the optical disc drive.
3Check the disc for dirt or damage. If you need to clean the disc, see Discs (page 114) for instructions.
❑If you are playing a disc and cannot hear sound, do any of the following:
❑The volume may have been turned off by the Fn+F2 keys. Press them once again.
❑The volume may have been minimized by the Fn+F3 keys. Keep pressing the Fn+F4 keys to tur n up the volume loud 
enough to hear sound.
❑Right-click the volume icon on the taskbar and click Open Volume Mixer to check the settings.
❑Check the volume setting in the audio mixer.
❑If you are using external speakers, check the volume settings on the speakers and the connections between the 
speakers and your computer.
❑Make sure the correct driver software is installed. Follow these steps:
1Click Start and Control Panel.
2Click System and Security.
3Click System. 
						

							150nN Troubleshooting >
Optical Discs
4Click Device Manager in the left pane.
The Device Manager window appears with a listing of your computers hardware devices.
If an X or an exclamation point appears on the listed device, you may need to enable the device or reinstall the driver 
software.
5Double-click the optical disc drive device to open a list of the optical disc drives of your computer.
6Double-click your desired drive.
You can confirm the driver software by selecting the Driver tab, and clicking Driver Details.
7Click OK to close the window.
❑Make sure an adhesive label is not affixed to a disc. Adhesive labels can come off while the disc is in the optical disc drive 
and damage the drive or cause it to malfunction.
❑If a region code warning appears, the disc may be incompatible with the optical disc drive. Check the package to make 
sure the region code is compatible with the optical disc drive.
❑If you notice condensation on your computer, do not use the computer for at least one hour. Condensation can cause the 
computer to malfunction.
❑Make sure your computer is running on AC power and try the disc again.