Mac OS X: PPP connection fails, how to turn PPP LCP echo off

This document describes how to turn off the PPP LCP (Link Control Protocol) Echo option. You may need to do this if you can't connect to the Internet via PPP (dial-up modem).
This article has been archived and is no longer updated by Apple.
The PPP connection to the Internet is not made if a PPP server does not reply to LCP Echo packets.

This document applies to Mac OS X 10.1 or later.

Mac OS X 10.1
    1. Open the Internet Connect applications.
    2. Click Advanced Options.
    3. Deselect "Send LCP echo packet".

Mac OS X 10.2, 10.3 or later
    1. Choose Apple menu > System Preferences.
    2. Choose View > Network.
    3. Choose Internal Modem from the Show pop-up menu.
    4. Click the PPP tab.
    5. Click PPP Options.
    6. Deselect "Send PPP echo packets".
Published Date: Feb 17, 2012