ThinkPad Edge E440 - Page 153

•Problem:Theadapterstopsworkingfornoapparentreason.
Solution:Thenetworkdriverfilesmightbecorruptormissing.Updatethedriverbyreferringtotheabove
solutionfortheproceduretomakesurethatthecorrectdevicedriverisinstalled.
•Problem:IfyourcomputerisaGigabitEthernetmodelandyouuseaspeedof1000Mbps,the
connectionfailsorerrorsoccur.
Solution:
–UseCategory5wiringandmakesurethatthenetworkcableissecurelyconnected.
–Connecttoa1000BASE-Thub/switch(not1000BASE-X).
•Problem:TheWakeonLANfeatureisnotworking.
Solution:
–MakesurethatWakeonLANisenabledinThinkPadSetup.
–Ifitis,checkwithyourLANadministratorforthenecessarysettings.
•Problem:IfyourcomputerisaGigabitEthernetmodel,itcannotconnecttothenetworkat1000Mbps.
Instead,itconnectsat100Mbps.
Solution:
–Tryanothercable.
–Makesurethatthelinkpartnerissettoauto-negotiate.
–Makesurethattheswitchis802.3ab-compliant(gigabitovercopper).
AwirelessLANproblem
Problem:Icannotconnecttothenetworkusingthebuilt-inwirelessnetworkcard.
Solution:Makesurethat:
•YourwirelessLANdriveristhelatestversion.
•Yourcomputeriswithinrangeofawirelessaccesspoint.
•Thewirelessradioisenabled.
Note:IfyouareusingtheWindows7operatingsystem,clickShowhiddeniconsontheWindows
notificationarea.TheAccessConnectionsiconisdisplayed.Formoreinformationabouttheicon,referto
theAccessConnectionshelpinformationsystem.
FortheWindows7operatingsystem,checktheNetworkName(SSID)andyourencryptioninformation.Use
theAccessConnectionsprogramtoverifythiscase-sensitiveinformation.
AwirelessWANproblem
Problem:AmessageisdisplayedindicatingthatanunauthorizedWANcardisinstalled.
Solution:TheWANcardisnotsupportedonthiscomputer.RemovetheWANcard.
Note:SomemodelsdonothaveawirelessWANcard.
Bluetoothproblems
Note:CheckyourconnectionanytimeandmakesurethatnootherBluetooth-enableddeviceissearchingfor
thedevicetowhichyouwanttoconnect.SimultaneoussearchingisnotallowedintheBluetoothconnection.
Chapter10.Troubleshootingcomputerproblems137