•Thecableisinstalledproperly.
•Theswitchportandtheadapterhavethesameduplexsetting.
Ifyouconfiguredtheadapterforfullduplex,ensurethattheswitchportisalsoconfiguredforfullduplex.
Settingthewrongduplexmodecandegradeperformance,causedataloss,orresultinlostconnections.
•Youhaveinstalledallnetworkingsoftwarethatisnecessaryforyournetworkenvironment.
CheckwithyourLANadministratorforthenecessarynetworkingsoftware.
Theadapterstopsworkingfornoapparentreason
Symptom:Theadapterstopsworkingfornoapparentreason.
Action:Thenetworkdriverfilesmaybecorruptormissing.Updatethedriverbyreferringtothe“Solution”
descriptionfortheproceduretomakesurethatthecorrectdevicedriverisinstalled.
TheWakeonLANfeatureisnotworking
Symptom:TheWakeonLAN(WOL)featureisnotworking.
Actions:
•EnsurethatWOLisenabledintheBIOSSetupUtilityprogram.
•Ifitis,checkwithyourLANadministratorforthenecessarysettings.
IfyourcomputerisaGigabitEthernetmodelandyouuseaspeedof1000Mbps,the
connectionfailsorerrorsoccur
Symptom:IfyourcomputerisaGigabitEthernetmodelandyouuseaspeedof1000Mbps,theconnection
failsorerrorsoccur.
Actions:
•UseCategory5wiringandmakesurethatthenetworkcableissecurelyconnected.
•Connecttoa1000BASE-Thub/switch(not1000BASE-X).
IfyourcomputerisaGigabitEthernetmodel,itcannotconnecttothenetworkat
1000Mbps.Instead,itconnectsat100Mbps
Symptom:IfyourcomputerisaGigabitEthernetmodel,itcannotconnecttothenetworkat1000Mbps.
Instead,itconnectsat100Mbps.
Actions:
•Tryanothercable.
•Ensurethatthelinkpartnerissettoauto-negotiate.
•Ensurethattheswitchis802.3ab-compliant(gigabitovercopper).
Optionproblems
IfyourcomputerisequippedwithLenovohardwareoptions,usethisinformationtodiagnoseproblemswith
Lenovohardwareoptionsthatdonothavetheirowntroubleshootinginformation.
Selectyoursymptomfromthefollowinglist:
•“Anoptionthatwasjustinstalleddoesnotwork”onpage61
•“Anoptionthatpreviouslyworkeddoesnotworknow”onpage61
60ThinkCentreM32UserGuide
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