Lenovo ThinkPad Edge E431 - A Wireless Lan Problem

•Problem:Theadapterstopsworkingfornoapparentreason.
Solution:Thenetworkdriverlesmightbecorruptormissing.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:Youcannotconnecttothenetworkusingthebuilt-inwirelessnetworkcard.
Solution:
•IfyourcomputerisinstalledwithWindows7operatingsystem,ensurethat:
–YourwirelessLANdriveristhelatestversion.ChecktheWebsiteandconrmthatthedriverversion
supportedbytheAccessConnectionsprogramisthelatestdocumentedinthereadmele.
–Yourcomputeriswithinrangeofawirelessaccesspoint.
–Thewirelessradioisenabledbydouble-clickingtheAccessConnectionsicononthetaskbar.
Note:IfyouareusingtheWindows7operatingsystem,clickShowhiddeniconsonthetaskbar.
TheAccessConnectionsiconisdisplayed.Formoreinformationabouttheicon,refertotheAccess
Connectionshelpinformationsystem.
ChecktheNetworkName(SSID)andyourencryptioninformation.UsetheAccessConnectionsprogram
toverifythiscase-sensitiveinformation.
•IfyoursystemisinstalledwithWindows8operatingsystem,ensurethat:
–YourwirelessLANdriveristhelatestversion.
–Yourcomputeriswithinrangeofawirelessaccesspoint.
–Thewirelessradioisenabled.
–TheAirplanemodeisoff.
AwirelessWANproblem
Problem:AmessageisdisplayedindicatingthatanunauthorizedWANcardisinstalled.
Chapter9.Troubleshootingcomputerproblems131