•Operating systems between MacOS 7.6.1 and MacOS 9.2.x (not OS X)
A) For MacOSes prior to version 8.6.1, there is a DHCP patch available at Apple Support that will improve your reliability when using DHCP.
B) Open your TCP/IP control panel
C) From the 'Edit' menu, select the 'User Mode...' menu item. Select the 'Advanced' radio button. Click the 'OK' button
D) Be sure to pick the ethernet interface that you have connected to your cable modem in the 'Connect via:' pulldown menu.
E) Uncheck the 'Use 802.3' check box
F) Select 'Using DHCP Server' in the 'Configure:' pulldown menu
G) Enter anything relatively unique in the 'DHCP Client ID' field
H) Delete any information in the 'Name server addr:' text field
I) Enter the text "comcast.net" (without quotes) in all 3 text fields on the right side of the control panel.
J) Click the 'Options...' button. Select the 'Active' radio button. Uncheck the 'Load only when needed' check box. Click the 'OK' button
K) From the 'Edit' menu, select the 'User Mode...' menu item. Select the 'Basic' radio button. Click the 'OK' button
L) Close the TCP/IP control panel and be sure to save your changes
• Macintosh PCs running OS X
A) Select 'System Preferences' from the 'Apple' menu
B) Open the 'Network' icon
C.1) Select 'Ethernet' in the appropriate menu
C.2) If you connected your cable modem to an AirPort, you will want to select the 'AirPort' option instead of 'Ethernet'
D) Select the 'DHCP' option in the appropriate menu
E) Enter anything relatively unique in the 'DHCP Client ID' field
F) Close the 'Network' window and the 'System preferences' window
G) (Optional) Check out Apple's new "Safari" browser!
*This FAQ is based on user knowledge from a volunteer core of BroadbandReports' members. This FAQ in no way constitutes official information from Comcast or any of its affiliates.