Specifications

60 Chapter 4 Problem, Meet Solution
IfyouhavetwoormorecomputerssharinganInternetconnection,besurethatyour
networkissetupproperly.YouneedtoknowifyourISPprovidesonlyoneIPaddress
orifitprovidesmultipleIPaddresses,oneforeachcomputer.
IfonlyoneIPaddressisprovided,thenyoumusthavearoutercapableofsharingthe
connection,alsoknownasnetworkaddresstranslation(NAT)or“IPmasquerading.”
Forsetupinformation,checkthedocumentationprovidedwithyourrouterorask
thepersonwhosetupyournetwork.YoucanuseanAirPortbasestationtoshare
oneIPaddressamongmultiplecomputers.ForinformationaboutusinganAirPort
basestation,checkMacHelporvisittheAppleAirPortwebsiteat
www.apple.com/support/airport.
Ifyoucan’tresolvetheissueusingthesesteps,contactyourISPornetworkadministrator.
Problems with AirPort Extreme Wireless Communication
If you have trouble using AirPort Extreme wireless communication:
Â Makesurethecomputerornetworkyouaretryingtoconnecttoisrunningandhasa
wirelessaccesspoint.
Â Makesureyouhaveproperlyconguredthesoftwareaccordingtotheinstructions
thatcamewithyourbasestationoraccesspoint.
Â Makesureyouarewithinantennarangeoftheothercomputerorthenetwork’s
accesspoint.Nearbyelectronicdevicesormetalstructurescaninterferewithwireless
communicationandreducethisrange.Repositioningorrotatingthecomputermight
improvereception.
Â ChecktheAirPort(Z)statusiconinthemenubar.Uptofourbarsappear,indicating
signalstrength.Ifthesignalstrengthisweak,trychangingyourlocation.