OS X Mountain Lion: Solve problems

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Solve problems

The tips below help with the most common problems. For help with other issues, type a phrase or question into Help Viewer’s search field at the top of this window.

Problems sharing another computer’s DVD or CD drive

If your Mac doesn’t have a DVD or CD drive, you can share the drive of another Mac or Windows computer. For instructions, see these help topics:

Use another computer’s DVD or CD drive

Share your DVD or CD drive

Problems connecting to the Internet

If you can’t connect to the Internet, there may be a problem with your cables, your devices, your network settings, or your Internet service.

  • First, try using Network Diagnostics, which can diagnose and resolve most problems.
  • If you have a wireless network, make sure your computer is communicating with the router and that the router is connected to the Internet.
  • If your router is an AirPort Base Station, open AirPort Utility and choose Help > AirPort Utility Help.
  • If your router is from a manufacturer other than Apple, refer to the router’s documentation.
  • Make sure all cables are firmly connected.
  • Make sure all external devices such as modems, hubs, and routers are plugged in, turned on, and have started up completely. Try resetting these devices by unplugging them for a couple of minutes and then plugging them back in.
  • Check indicator lights to make sure your modem or router is registering a connection to the network and to your computer. If an indicator light does not come on, see the documentation that came with the device or contact your ISP.
  • Make sure you have the correct settings for your type of connection. Open the Network pane of System Preferences and check the status of each network service, such as Ethernet, Bluetooth, and AirPort. The network service you are using should have a green indicator and the word “Connected.”

    To view more information about your network service, click to highlight it. For additional help, click the “Assist me” button.

If all of the above are set up correctly and you still can’t connect to the Internet, call your ISP. There may be a temporary problem with the service.

Problems sending and receiving email

OS X includes the Mail app and supports other apps such as Entourage. If you’re experiencing problems with any type of email application, try the following:

  • If you can’t send or receive email messages, first make sure you’re connected to the Internet.
  • If you are using a Mail app from a manufacturer other than Apple, consult the help for that application, or go to the manufacturer’s website.

    If you are using the Mail app included in OS X, see this help topic:

    Solve Mail problems

Problems with passwords

Problems with printers

Get more information about your Mac

  • Find more help topics by typing a phrase or question into the search field at the top of this window.
  • See the user guide that came with your Mac. If you can’t find it, download a copy from the Apple website.

    Apple Product Documentation website

  • To see a list of the hardware built into or connected to your Mac, as well as information about your version of OS X, open System Information.
  • For technical specifications for Apple products, visit the Apple Specifications website.

    Apple Specifications website

  • For help with an app, open its Help menu, or click a Help button (question mark) if you see one.
  • For support for Apple products, visit the Apple Support website, or try the Apple discussion forums where users share information and tips.

    Apple Support website

    Apple Discussions website

  • For support for products from another manufacturer, check the product’s documentation, contact the manufacturer, or visit the manufacturer’s website.
Last Modified: Sep 4, 2015

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