Personal Computer User Manual

IfyourcomputerisaGigabitEthernetmodel,itcannotconnecttothenetworkat1000Mbps.Instead,
itconnectsat100Mbps
Symptom:IfyourcomputerisaGigabitEthernetmodel,itcannotconnecttothenetworkat1000Mbps.
Instead,itconnectsat100Mbps.
Actions:
•Tryanothercable.
•Ensurethatthelinkpartnerissettoauto-negotiate.
•Ensurethattheswitchis802.3ab-compliant(gigabitovercopper).
AwirelessLANproblem
Symptom:Youcannotconnectusingthebuilt-inwirelessnetworkingcard.
Actions:
•EnsurethatyourwirelessLANdriveristhelatestversion.ChecktheWebsiteandverifythedriverversion
supportedbyAccessConnectionsisthelatestdocumentedinthereadmele.
•Ensurethatyourcomputeriswithinrangeofawirelessaccesspoint.
•Ensurethatthewirelessradioisenabledbydouble-clickingtheAccessConnectionsiconintheWindows
noticationarea.
•CheckNetworkName(SSID),andyourencryptioninformation.UseAccessConnectionstoverifythis
case-sensitiveinformation.
AwirelessWANproblem
Message:UnauthorizedWANcardispluggedin-PoweroffandremovetheWANcard.
Action:TheWANcardisnotsupportedonthiscomputer.Removeit.
Note:SomecomputermodelsdonothaveawirelessWAN.
Bluetoothproblem
Symptom:SounddoesnotcomefromtheBluetoothheadsetorheadphonebutcomesfromthelocal
speakereventhoughtheheadsetorheadphoneisconnectedusingtheHeadsetproleorAVprole.
Action:Dothefollowing:
1.Exittheapplicationthatusesthesounddevice(forexample,WindowsMedia
®
Player).
2.OpenControlPanel.
3.ClickHardwareandSound➙Sound.
4.SelectthePlaybacktab.
5.IfyouareusingtheHeadsetprole,selectBluetoothHands-freeAudioandclicktheSetDefault
button.IfyouareusingtheAVprole,selectStereoAudioandclicktheSetDefaultbutton.
6.ClickOKtoclosetheSoundwindow.
Optionproblems
UsethisinformationtodiagnoseproblemswithLenovohardwareoptionsthatdonothavetheirown
troubleshootinginformation.
Selectyoursymptomfromthefollowinglist:
•“Anoptionthatwasjustinstalleddoesnotwork”onpage49
48ThinkCentreE73zHardwareMaintenanceManual