•Problem:Theadapterstopsworkingfornoapparentreason.
Solution:Thenetworkdriverlesmaybecorruptormissing.Updatethedriverbyreferringtothe
“Solution”descriptionfortheproceduretomakesur ethatthecorr ectdevicedriverisinstalledinthe
precedingproblem.
•Problem:IfyourcomputerisaGigabitEthernetmodelandyouusetheaspeedof1000Mbps,the
connectionfailsorerrorsoccur.
Solution:
–UseCategory5wiringandmakesur ethatthenetworkcableissecurelyconnected.
–Connecttoa1000BASE-Thub/switch(not1000BASE-X).
•Problem:Yourcomputercannotconnectt othenetworkat1000Mbps.Instead,itconnectsat100Mbps.
Solution:
–Tryanothercable.
–Makesurethatthelinkpartnerissettoauto-negotiate.
–Makesurethattheswitchis802.3ab-compliant(gigabitovercopper).
AwirelessLANproblem
•Problem:Youcannotconnectusingthebuilt-inwirelessnetworkingcard.
Solution:MakesurethatyourwirelessLANdriveristhelatestversioninstalled.ChecktheWebsiteand
conrmthedriverversionsupportedbyAccessConnectionsisthelatestdocumentedintheREADMEle.
Makesurethatyourcomputeriswithinrangeofawir elessaccesspoint.
Makesurethatthewirelessradioisenabledbydouble-clickingtheAccessConnectionsiconinthe
taskbar.
Note:IfyourcomputerisaWindows7model,todisplaytheAccessConnectionsstatusiconandthe
wirelessstatusiconinthesystemtr ay,refertotheAccessConnectionson-linehelp.
CheckNetworkName(SSID),andyourencryptioninformation.UseAccessConnectionstoverifythis
case-sensitiveinformation.
Note:AccessConnectionsdoesnotsupportconnectiontowirelessWANnetworkinChina.
AwirelessWANproblem
•Message:UnauthorizedWANcardispluggedin-PoweroffandremovetheWANcard.
Solution:TheWANcardisnotsupportedonthiscomputer.Removeit.
Note:Dependingonyourcomputer,somemodelsdonothaveawirelessWAN.
Bluetoothproblems
ForWindows7:
•Problem:SounddoesnotcomefromtheBluetoothheadset/headphonebutcomesfromthelocal
speakereventhoughtheheadset/headphoneisconnect edusingHeadsetproleorAVprole.
Solution:Dothefollowing:
1.Exittheapplicationthatusesthesounddevice(forexample,WindowsMediaPlayer).
2.OpentheControlPanelbyclickingStart➙ControlPanel.
3.ClickHardwareandSound➙Sound.
4.SelectthePlaybacktab.
Chapter10.Troubleshootingcomputerproblems139