3.Turnonthemonitor.
Iftheseactionsdonotcorrecttheproblem,yourmonitormightneedservice.SeeChapter11“Getting
information,help,andservice”onpage111fordetails.
Networkingproblems
Thefollowingarethemostcommonnetworkingproblems.Selectyournetworkingproblemfromthe
followinglist:
•“Ethernetproblems”onpage101
•“AwirelessLANproblem”onpage102
•“AwirelessWANproblem”onpage103
•“Bluetoothproblems”onpage103
Formor einformation,see“HelpandSupport”onpage111.

Ethernetproblems

ForE thernetproblems,selectyoursymptomfromthefollowinglist:
•“Yourcomputercannotconnecttothenetwork”onpage101
•“Theadapterstopsworkingfornoappar entreason”onpage102
•“IfyourcomputerisaGigabitEthernetmodelandyouuseaspeedof1000Mbps,theconnectionfails
orerrorsoccur”onpage102
•“IfyourcomputerisaGigabitEthernetmodel,itcannotconnecttothenetworkat1000Mbps.Inst ead,it
connectsat100Mbps”onpage102
Yourcomputercannotconnecttothenetwork
Symptom:Yourcomputercannotconnecttothenetwork.
Actions:Makesurethat:
•Thecableisinstalledproperly.
ThenetworkcablemustbesecurelyconnectedtoboththeEthernetconnectorofyourcomputerand
theRJ45connectorofthehub.Themaximumallowabledistancefromthecomputertohubis100
meters.Ifthecableisconnectedandthedistanceiswithinacceptablelimitsbutthepr oblempersists,try
adifferentcable.
•Thecableisinstalledproperly.
•Youareusingthecorrectdevicedriver.
OntheWindows7operatingsystemandtheWindowsVistaoperatingsystem,dothefollowing:
1.ClickStart➙ControlPanel.
2.ClickHardwareandSound.
3.ClickDeviceManager.Ifyouarepromptedforanadministratorpasswordorconrmation,typethe
passwordorprovideconrmation.
4.IfanexclamationmarkisdisplayednexttoanadapternameunderNetworkadapters,youmightnot
usethecorrectdriverorthedriverisnotenabled.Toupdatethedriver,right-clickthehighlighted
adapter.
5.ClickUpdateDriverSoftware,andthenfollowtheinstructionsonthescreen.
•Theswitchportandtheadapterhavethesameduplexsetting.
Chapter10.Troubleshootinganddiagnostics101