2.Adjusttheplacementofthemonitorandotherdevicessothattheyareatleast305mm(12inches)
apart.
3.Turnonthemonitor.
YoucanresettherefreshratethroughyouroperatingsystemControlPanel.
OntheWindows7operatingsystem,clickStartControlPanelHardwareandSoundAdjust
screenresolutionAdvancedSettings.ThenclicktheMonitortabandselectanewrefreshr ate.
Seeyouroperatingsystemdocumentationorhelpforfurtherinformationonmonitorsettings.
Iftheseactionsdonotcorrecttheproblem,yourmonitormightneedservice.SeeChapter12“Getting
information,help,andservice”onpage103fordetails.

Theimageisdiscolored

Symptom:Theimageisdiscolored.
Action:Themonitormightbeaffectedbyinterferencefromnearbyequipment.Magneticeldsaroundother
devices,suchastransformers,appliances,uorescentlights,andothermonitorsmightbecausingthe
problem.Moveuorescentdesklightingoranyequipmentthatproducesmagneticeldsfurtherawayfrom
themonitor .Ifthisdoesnotcorrecttheproblem,dothefollowing:
1.Turnoffthemonitor.(Movingacolormonitorwhileitisturnedonmightcausescreendiscoloration.)
2.Adjusttheplacementofthemonitorandotherdevicessothattheyareatleast305mm(12inches)apart.
3.Turnonthemonitor.
Iftheseactionsdonotcorrecttheproblem,yourmonitormightneedservice.SeeChapter12“Getting
information,help,andservice”onpage103fordetails.
Networkingproblems
Thefollowingarethemostcommonnetworkingproblems.Selectyournetworkingproblemfromthe
followinglist:
“Ethernetproblems”onpage94
“AwirelessLANproblem”onpage96
“AwirelessWANproblem”onpage96
“Bluetoothproblems”onpage96
Formor einformation,see“HelpandSupport”onpage103.

Ethernetproblems

ForE thernetproblems,selectyoursymptomfromthefollowinglist:
“Yourcomputercannotconnecttothenetwork”onpage94
“Theadapterstopsworkingfornoapparentreason”onpage95
“IfyourcomputerisaGigabitEthernetmodelandyouuseaspeedof1000Mbps,theconnectionfails
orerrorsoccur”onpage95
“IfyourcomputerisaGigabitEthernetmodel,itcannotconnecttothenetworkat1000Mbps.Instead,
itconnectsat100Mbps”onpage95
Yourcomputercannotconnecttothenetwork
Symptom:Yourcomputercannotconnecttothenetwork.
Actions:Makesurethat:
94ThinkStationUserGuide