Apple MC812LL/A, MD096LL/A manual Problems with Wireless Communication

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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.

An AirPort base station can be used to share one IP address among multiple computers. For information about using an AirPort base station, see Help Center (click Help in the menu bar and search for “airport”) or visit the 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 Wireless Communication

If you have trouble using wireless communication:

ÂÂ Make sure the computer or network you are trying to connect to is running and has a wireless access point.

ÂÂ Make sure you’ve properly configured the software according to the instructions that came with your base station or access point.

ÂÂ Make sure your iMac is 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 your iMac might improve reception.

ÂÂ Check the Wi-Fi status menu (Z) in the menu bar. Up to four bars appear, indicating signal strength. If the signal strength is weak, try changing your location.

ÂÂ See Help Center (click Help in the menu bar and search for “wi-fi”). Also see the instructions that came with the wireless device for more information.

Chapter 4   Problem, Meet Solution

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Contents Congratulations, you and your iMac Were made for each other Welcome to your iMac OS X Lion Page Contents Looking for Something? Ready, Set Up, Go Ready, Set Up, Go What’s in the Box Setting Up Your iMac Ready, Set Up, Go Turn on your wireless keyboard and mouse Ready, Set Up, Go To set up your iMac Configure your iMacCustomize your desktop and set your preferences Putting Your iMac to Sleep Putting Your iMac to Sleep or Shutting It DownTo put your iMac to sleep, do one of the following To wake your iMac from sleep, do one of the followingShutting Down Your iMac Page Life with Your iMac Basic Features of Your iMac Built-in ambient light sensor Ports on Your iMac Ethernet port 10/100/1000Base-T Other Components of Your iMac Power port Features of the Apple Wireless Keyboard and Magic Mouse Apple Wireless Keyboard About the Indicator Light Using the Apple Wireless KeyboardUsing Your Apple Wireless Keyboard Pairing Your Apple Wireless Keyboard with Your iMacTo pair your wireless keyboard To customize your keyboardUsing the Apple Magic Mouse Using Your Apple Magic Mouse Pairing Your Apple Magic Mouse with Your iMacTo pair your mouse To use your remote Using the Apple RemoteReplacing the Battery Pairing Your Apple RemoteTo replace the battery To pair your remoteMore Information Getting AnswersTo get help from Help Center System Preferences by choosing Apple K System Downloading Mac software Boost Your Memory Boost Your Memory To install memory Installing MemoryRemove the memory access door and set it aside Untuck the tabs Pull the tab Memory modules Raise stand Memory access door Phillips screwdriver Making Sure Your iMac Recognizes the New Memory To check the memory installed in your iMacProblem, Meet Solution Problem, Meet Solution An Ounce of Prevention Problems That Prevent You from Using Your iMacIf your iMac won’t respond or the pointer won’t move Problem, Meet Solution If you have trouble inserting a disc If your iMac won’t turn on or start upIf your date and time settings get lost repeatedly Repairing, Restoring, or Reinstalling Mac OS X SoftwareIf you have trouble ejecting a disc If you have trouble scrolling with your mouseProblem, Meet Solution To connect by using a Wi-Fi network Repairing a Disk with Disk UtilityTo open the Mac OS X Utilities application Reinstalling Mac OS X and Apple Applications Restoring Information Using a Time Machine BackupRestoring Your Computer to Its Factory Settings To use Apple Hardware Test Checking for a Hardware ProblemReplacing the Batteries To replace the batteries in the Apple Wireless Keyboard To replace the batteries in the Apple Magic Mouse Problems with Your Internet ConnectionCable Modem, DSL Modem, and LAN Internet Connections To use Network DiagnosticsPPPoE Connections To enter PPPoE settingsProblems with Wireless Communication Keeping Your Software Up to Date Learning More, Service, and SupportOnline Resources Onscreen Help AppleCare Service and SupportSystem Information Country Phone Website Locating Your Product Serial NumberLast, but Not Least Important Safety Information Last, but Not Least Mouse Class 1 Laser Information Power specificationsDo Not Make Repairs Yourself Laser Information for Optical Disc DrivesÂÂ Maximum operating altitude 10,000 feet 3048 meters Important Handling InformationCleaning Your iMac Display Cleaning Your iMacTo clean your iMac display, do the following Understanding Ergonomics Cleaning Your MouseKeyboard MouseDisplay Chair Apple and the EnvironmentRegulatory Compliance Information Bluetooth Europe-EU Declaration of Conformity Korea Warning Statements Japan Vcci Class B Statement Taiwan Battery Statement Chinese Battery Statement Page Looking for Something? Index Looking for Something? Parameter RAM, resetting 49 ports Force an application to quit  Page Simultaneously published in the United States and Canada