1. Home
    2. /
  2. Manuals
    3. /
  3. Cisco
    4. /
  4. DPC3825
    5. /
  5. 19
Page 91 / 104 Scroll up to view Page 86 - 90
4021196 Rev B
91
Frequently Asked Questions
Frequently Asked Questions
Q.
How Do I Configure TCP/IP Protocol?
A. To configure TCP/IP protocol, you need to have an Ethernet Network Interface
Card (NIC) with TCP/IP communications protocol installed on your system.
TCP/IP is a communications protocol used to access the Internet. This section
contains instructions for configuring TCP/IP on your Internet devices to operate
with the residential gateway in Microsoft Windows or Macintosh environments.
TCP/IP protocol in a Microsoft Windows environment is different for each
operating system. Follow the appropriate instructions in this section for your
operating system.
Configuring TCP/IP on Windows 2000 Systems
1
Click
Start
, select
Settings
, and choose
Network and Dial-up Connections
.
2
Double-click the
Local Area Connection
icon in the Network and Dial-up
Connections window.
3
Click
Properties
in the Local Area Connection Status window.
4
Click
Internet Protocol (TCP/IP)
in the Local Area Connection Properties
window, and then click
Properties
.
5
Select both
Obtain an IP address automatically
and
Obtain DNS server address
automatically
in the Internet Protocol (TCP/IP) Properties window, and then
click
OK
.
6
Click
Yes
to restart your computer when the Local Network window opens. The
computer restarts. The TCP/IP protocol is now configured on your PC, and your
Ethernet devices are ready for use.
7
Try to access the Internet. If you cannot access the Internet, contact your service
provider for further assistance.
Configuring TCP/IP on Windows XP Systems
1
Click
Start
, and depending on your Start menu setup, choose one of the
following options:
If you are using the Windows XP Default Start Menu, select
Connect to
,
choose
Show all connections
, and then go to step 2.
If you are using the Windows XP Classic Start Menu, select
Settings
, choose
Network Connections
, click
Local Area Connection
, and then go to step 3.
2
Double-click the
Local Area Connection
icon in the LAN or High-Speed Internet
section of the Network Connections window.
3
Click
Properties
in the Local Area Connection Status window.
4
Click
Internet Protocol (TCP/IP)
, and then click
Properties
in the Local Area
Connection Properties window.
Page 92 / 104
92
4021196 Rev B
Frequently Asked Questions
5
Select both
Obtain an IP address automatically
and
Obtain DNS server address
automatically
in the Internet Protocol (TCP/IP) Properties window, and then
click
OK
.
6
Click
Yes
to restart your computer when the Local Network window opens. The
computer restarts. The TCP/IP protocol is now configured on your PC, and your
Ethernet devices are ready for use.
7
Try to access the Internet. If you cannot access the Internet, contact your service
provider for further assistance.
Configuring TCP/IP on Macintosh Systems
1
Click the
Apple
icon in the upper-left corner of the Finder. Scroll down to
Control Panels
, and then click
TCP/IP
.
2
Click
Edit
on the Finder at the top of the page. Scroll down to the bottom of the
menu, and then click
User Mode
.
3
Click
Advanced
in the User Mode window, and then click
OK
.
4
Click the Up/Down selector arrows located to the right of the Connect Via
section of the TCP/IP window, and then click
Using DHCP Server
.
5
Click
Options
in the TCP/IP window, and then click
Active
in the TCP/IP
Options window.
Note:
Make sure that the
Load only when needed option
is
unchecked
.
6
Verify that the
Use 802.3
option located in the upper-right corner of the TCP/IP
window is unchecked. If there is a check mark in the option, uncheck the option,
and then click
Info
in the lower-left corner.
7
Is there a Hardware Address listed in this window?
If
yes
, click
OK
. To close the TCP/IP Control Panel window, click
File
, and
then scroll down to click
Close
. You have completed this procedure.
If
no
, you must power off your Macintosh.
8
With the power off, simultaneously press and hold down the
Command
(Apple)
,
Option
,
P
, and
R
keys on your keyboard. Keeping those keys pressed
down, power on your Macintosh but do not release these keys until you hear the
Apple chime at least three times, then release the keys and let the computer
restart.
9
When your computer fully reboots, repeat steps 1 through 7 to verify that all
TCP/IP settings are correct. If your computer still does not have a Hardware
Address, contact your authorized Apple dealer or Apple technical support center
for further assistance.
Q. How Do I Renew the IP Address on My PC?
A. If your PC cannot access the Internet after the residential gateway is online, it is
possible that your PC did not renew its IP address. Follow the appropriate
instructions in this section for your operating system to renew the IP address on
your PC.
Page 93 / 104
4021196 Rev B
93
Frequently Asked Questions
Renewing the IP Address on Windows 95, 98, 98SE, and ME Systems
1
Click
Start
, and then click
Run
to open the Run window.
2
Type
winipcfg
in the Open field, and click
OK
to execute the winipcfg
command. The IP Configuration window opens.
3
Click the down arrow to the right of the top field, and select the Ethernet adapter
that is installed on your PC. The IP Configuration window displays the Ethernet
adapter information.
4
Click
Release
, and then click
Renew
. The IP Configuration window displays a
new IP address.
5
Click
OK
to close the IP Configuration window, you have completed this
procedure.
Note:
If you cannot access the Internet, contact your service provider for further
assistance.
Renewing the IP Address on Windows NT, 2000, or XP Systems
1
Click
Start
, and then click
Run
. The Run window opens.
2
Type
cmd
in the Open field and click
OK
. A window with a command prompt
opens.
3
Type
ipconfig/release
at the C:/ prompt and press
Enter
. The system releases
the IP address.
4
Type
ipconfig/renew
at the C:/ prompt and press
Enter
. The system displays a
new IP address.
5
Click the
X
in the upper-right corner of the window to close the Command
Prompt window. You have completed this procedure.
Note:
If you cannot access the Internet, contact your service provider for further
assistance.
Q.
What if I don't subscribe to cable TV?
A.
If cable TV is available in your area, data service may be made available with or
without subscribing to cable TV service. Contact your local service provider for
complete information on cable services, including high-speed Internet access.
Q.
How do I arrange for installation?
A.
Call your service provider to inquire about professional installation. A
professional installation ensures proper cable connection to the modem and to your
PC, and it ensures the proper configuration of all hardware and software settings.
Contact your service provider for more information about installation.
Page 94 / 104
94
4021196 Rev B
Frequently Asked Questions
Q.
How does the residential gateway connect to my computer?
A.
The residential gateway connects to the PC using a wireless connection or the
10/100/1000BASE-T Ethernet port on your PC. If you want to use an Ethernet
interface, Ethernet cards available from your local PC or office supply retailer, or
from your service provider. For best performance over an Ethernet connection, your
PC should be equipped with a Gigabit Ethernet card.
Q.
After my residential gateway is connected, how do I access the Internet?
A. Your local service provider becomes your Internet Service Provider (ISP). They
offer a wide range of services including e-mail, chat, news, and information services.
Your service provider will provide the software you will need.
Q.
Can I watch TV and surf the Internet at the same time?
A.
Absolutely! If you subscribe to cable television service, you can watch TV and
use your residential gateway at the same time by connecting your TV and your
residential gateway to the cable network using an optional cable signal splitter.
Common Troubleshooting Issues
I don't understand the front panel status indicators
See
Front Panel LED Status Indicator Functions
(on page 96), for more detailed
information on front panel LED status indicator operation and function.
The residential gateway does not register an Ethernet connection
Verify that your computer has an Ethernet card and that the Ethernet driver
software is properly installed. If you purchase and install an Ethernet card,
follow the installation instructions very carefully.
Verify the status of the front panel status indicator lights.
The residential gateway does not register an Ethernet connection after connecting to a hub
If you are connecting multiple PCs to the residential gateway, you should first
connect the modem to the uplink port of the hub using the correct crossover cable.
The LINK LED of the hub will illuminate continuously.
The residential gateway does not register a cable connection
The modem works with a standard 75-ohm RF coaxial cable. If you are using a
different cable, your residential gateway will not function properly. Contact your
cable service provider to determine whether you are using the correct cable.
Your NIC card or USB interface may be malfunctioning. Refer to the
troubleshooting information in the NIC or USB documentation.
Page 95 / 104
4021196 Rev B
95
Tips for Improved Performance
Tips for Improved Performance
Check and Correct
If your residential gateway does not perform as expected, the following tips may
help. If you need further assistance, contact your service provider.
Verify that the plug to your residential gateway AC power is properly inserted
into an electrical outlet.
Verify that your residential gateway AC power cord is not plugged into an
electrical outlet that is controlled by a wall switch. If a wall switch controls the
electrical outlet, make sure the switch is in the
ON
position.
Verify that the
ONLINE
LED status indicator on the front panel of your
residential gateway is illuminated.
Verify that your cable service is active and that it supports two-way service.
Verify that all cables are properly connected, and that you are using the correct
cables.
Verify that your TCP/IP is properly installed and configured if you are using the
Ethernet connection.
Verify that you have called your service provider and given them the serial
number and MAC address of your residential gateway.
If you are using a cable signal splitter so that you can connect the residential
gateway to other devices, remove the splitter and reconnect the cables so that the
residential gateway is connected directly to the cable input. If the residential
gateway now functions properly, the cable signal splitter may be defective and
may need to be replaced.
For best performance over an Ethernet connection, your PC should be equipped
with a Gigabit Ethernet card.

Rate

3.5 / 5 based on 2 votes.

Popular Cisco Models

Famous Router IPs
Famous Router Companies
Bookmark Our Site

Press Ctrl + D to add this site to your favorites!

Share
Top