Lenovo R50 Series manual Enabling Extended Channel Mode

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Access Point that is Wi-Fi compliant or in Ad Hoc mode, this device will operate in its authorized modes in all geographies.

Please reconfigure selected frequencies when you travel from one country to another.

Enabling Extended Channel Mode

The statement below regarding the extended channel mode is applicable when the system supports this function. To check the support of this function, please see the property of the installed wireless card by referring to the extended channel mode enablement instruction.

In countries other than the United States and Canada, extra IEEE 802.11b channels may be supported. If you have a problem to connect an Access Point, please contact your system administrator or check your Access Point to know which channel is used. And if the 802.11b channel is 12 or greater, you will need to enable “Extended Channel Mode” with next steps.

1.Start Windows 2000/XP. Logon with administrative privileges.

2.Right mouse click on My computer on Desktop and select Property.

3.Click on Hardware Tab and push Device Manager Button.

4.Double-click on Network Adapter, locate a wireless adapter device, right mouse click on the device and select Property.

5.Click on Advanced Tab.

6.Select “Extended Channel Mode” and set the value to “Enable”.

Note: This will be applied for systems with 802.11b wireless function supporting Extended Channel Mode.

Appendix A. Wireless related information 45

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Contents ThinkPad R50 Series Service and Troubleshooting Guide Page ThinkPad R50 Series Service and Troubleshooting Guide Page Contents Iv ThinkPad R50 Series Service and Troubleshooting Guide Σηµε Σηµαντικ Οδηγ Σχετικ Με την ασϕΑπ εξουσιοδοτηµ Τεχνικ Και µε κ Ηλεκτρονικ Καταστ Που πρ Να αντιµετωπΣυντ Γενικ οδηγ ΑσϕΕπικ Κινητ µ Αποϕ Την επαϕ µε τα δ Σας και µε Του σ Επεκτ Καλωδ Και σχετικ Συσκευ Καλ Και µετασχηµατιστΠροσοχ Μπαταρ Φις και πρΘερµ Και εξαερισµ DVD CD και DVDΚΙΝ∆ΥΝΟΣ Πληροϕορ ΑσϕXiii CDC ΠροσοχηDVD-ROM Σχετικ Με τις προδιαγραϕ Των συσκευ LaserΠΡΟΕΙ∆ΟΠΟΙΗΣΗ Ο χειρισµ Important regulatory notice for users Important notice for usersInformation about hard disk capacity Xviii ThinkPad R50 Series Service and Troubleshooting Guide Xix Finding information with Access IBMXx ThinkPad R50 Series Service and Troubleshooting Guide Overview of your new ThinkPad computer Front view Your ThinkPad at a glanceRear view Features Features Specifications Carry your computer properly Important tips Be careful about where and how you workCaring for your ThinkPad computer Be gentle with your computerHandle storage media and drives properly Take care in setting passwordsOther important tips Cleaning your computer keyboard Cleaning the cover of your computerCare for the fingerprint reader Cleaning your computer displayCaring for your ThinkPad computer Solving computer problems Click PC-Doctor Diagnosing problemsTroubleshooting Error messagesSolving computer problems Solving computer problems Solving computer problems Select Security -IBM Predesktop Area -Access IBM Predesktop Problem Errors without messagesSolution My screen goes blank while the computer is on Power switch problem Password problemKeyboard problems UltraNav problems Standby or hibernation problems If these items are correct, have the computer serviced Select Timer Wake with Battery Operation by pressing Enter Click Power Management Computer screen problemsClick Advanced Battery problemsHard disk drive problems Startup problem Fingerprint authentication problems Other problems Solution Problem Starting Bios Setup Utility Recovering pre-installed software Starting Bios Setup UtilityUpgrading the hard disk drive Recovering pre-installed softwareHandling a hard disk drive Upgrading the hard disk driveUpgrading the hard disk drive Replacing the battery Replacing the battery Replacing the battery Getting help and service Getting help on the Web Calling the Customer Support Center Getting help and serviceFRU Getting help around the world Wireless interoperability Appendix A. Wireless related informationUsage environment and your health Authorized Operation Within the United States and Canada Enabling Extended Channel Mode ThinkPad R50 Series Service and Troubleshooting Guide Part 1 General Terms Appendix B. Warranty informationLenovo Statement of Limited Warranty What this Warranty CoversHow to Obtain Warranty Service What this Warranty Does not CoverWhat Lenovo Will Do to Correct Problems Your Additional Responsibilities Exchange of a Machine or PartGoverning Law Limitation of LiabilityPart 2 Country-unique Terms Uruguay MexicoParaguay PeruCAMBODIA, INDONESIA, and Laos United StatesAsia Pacific Australia Cambodia and LaosIndia PEOPLE’S Republic of China PRC JapanMalaysia NEW ZealandEUROPE, Middle EAST, Africa Emea SingaporeGoverning Law Arbitration The following is added under this heading Consumers European Union EUThinkPad R50 Series Service and Troubleshooting Guide Egypt Following Terms Apply to the Country Specified AustriaFrance Hungary GermanyIreland Slovakia Items for Which Lenovo is Not LiableUnited Kingdom Warranty Period Part 3 Warranty InformationTypes Types Customer Replaceable Unit ″CRU″ Service Types of Warranty ServiceCRU and On-site Service On-site ServiceCourier or Depot Service Customer Carry-In or Mail-In ServiceWorldwide telephone list Country or Region Telephone Number Country or Region Telephone Number Guarantee supplement for Mexico ThinkPad R50 Series Service and Troubleshooting Guide Customer replaceable units CRUs Appendix C. Customer Replacement Units CRUsThinkPad R50 Series Service and Troubleshooting Guide Appendix D. Notices Electronic emissions notices Television output noticeEuropean Union EMC Directive conformance statement Industry Canada Class B emission compliance statementHandling a disused ThinkPad battery pack Disposing of a disused lithium batteryEnvironmental notices for Japan IBM Lotus Software Offer European Countries U. S. Or Canada Call Latin American CountriesAsia Pacific Countries TrademarksThinkPad R50 Series Service and Troubleshooting Guide Index ThinkPad R50 Series Service and Troubleshooting Guide Page Part Number 39T2410