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Archived - Mac OS X: Some Services Cause Modem to Connect

Some services may make the modem to connect to the Internet.
This article has been archived and is no longer updated by Apple.
This occurs when you have set up your computer to connect automatically when a TCP/IP application needs to access the Internet. Certain applications or services, such as Web Sharing (Apache), Windows Sharing, and the Directory Access SMB Plug-in, may look for a TCP/IP connection, causing your modem to dial. To avoid this, use Network preferences to change your PPP or PPPoE Options:

For a PPP connection

  1. Open System Preferences.
  2. Click Network.
  3. From the Show menu ("Configure" menu prior to Mac OS X 10.1), choose Internal Modem.
  4. Click the PPP tab, then PPP Options.
  5. Deselect the checkbox for "Connect automatically when needed" (or in earlier Mac OS X versions, "Connect automatically when starting TCP/IP applications").
  6. Click OK, then click Apply Now.

For a PPPoE connection

  1. Open System Preferences.
  2. Click Network.
  3. From the Show menu ("Configure" menu prior to Mac OS X 10.1), choose Built-in Ethernet or AirPort.
  4. Click the PPPoE tab, then PPPoE Options.
  5. Deselect the checkbox for "Connect automatically when needed" (or in earlier Mac OS X versions, "Connect automatically when starting TCP/IP applications").
  6. Click OK, then click Apply Now.
Last Modified: Feb 17, 2012
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  • Last Modified: Feb 17, 2012
  • Article: TA20650
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