Cisco Router DPC3925 User Manual

							4021192 Rev B  91 
 
 Monitor Gateway Status 
 
 
Status Wireless Page Description 
Use the following table to review the status of your wireless network. 
Section Field Description   
Wireless 
Network 
MAC Address 
Displays the MAC Address of your gateways local wireless access point 
Radio Band 
Displays one of the following radio band frequencies currently in operation: 
 2.4 GHz 
 5 GHz 
 2.4 and 5 GHz 
Note: Not all products support the 5 GHz radio band. 
Network Name (SSID)  
Displays the name or service set identifier (SSID) of your wireless access 
point 
Channel Width  
Displays the channel bandwidth setting selected on the Basic Wireless 
Settings page 
Wide Channel  
Displays the Wide Channel setting selected on the Basic Wireless Settings 
page 
Standard Channel  
Displays the Standard Channel setting selected on the Basic Wireless 
Settings page 
Security 
Displays the security method used by your wireless network 
SSID Broadcast  
Displays the status of the gateways SSID Broadcast feature 
  
						

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Monitor Gateway Status 
 
Status > DOCSIS WAN 
DOCSIS WAN Status displays information about the system of your cable modem. 
Select the DOCSIS WAN tab to open the Status DOCSIS WAN page. 
 
DOCSIS WAN Page Description 
Use the descriptions in the following table to review the status of your DOCSIS 
WAN network. 
Section Field Description   
About Model 
Displays the name of the residential gateway 
Vendor 
Displays the manufacturer of the residential gateway 
Hardware Revision 
Displays the revision of the circuit board design 
Serial Number 
Displays the unique serial of the residential gateway  
						

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Section Field Description   
MAC Address (CM MAC Address) 
Displays the CM MAC Address. The CM MAC Address is a unique 
alphanumeric address for the cable modem coaxial interface, which is used 
to connect to the CMTS at the headend. A MAC address is a hardware 
address that uniquely identifies each node of a network. 
Bootloader Revision 
Displays the boot revision code version 
Current Software Revision 
Displays the revision version of the firmware 
Firmware Name 
Displays the name of the firmware 
Firmware Build Time 
Displays the date and time the firmware was built 
Cable Modem Status 
Displays one of the possible current states of the gateway 
Downstream 
Channels 
Channels 1-8 
Displays the power level and the signal to noise ratio of the active 
downstream channels 
Upstream 
Channels 
Channels 1-4 
Displays the power level of the active upstream channels     
						

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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.  
						

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 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.  
						

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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 dont 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.  
						

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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 dont understand the front panel status indicators 
See Front Panel LED Status Indicator Functions (on page 99), 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.  
						

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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. 
  
						

							4021192 Rev B 
 Front Panel LED Status Indicator Functions 
 
Front Panel LED Status Indicator Functions 
Initial Power Up, Calibration, and Registration (AC Power applied) 
The following chart illustrates the sequence of steps and the corresponding 
appearance of the residential gateway front panel LED status indicators during 
power up, calibration, and registration on the network when AC power is applied to 
the residential gateway. Use this chart to troubleshoot the power up, calibration, and 
registration process of your residential gateway. 
Note: After the residential gateway completes Step 11 (Telephone Registration 
Complete), the modem proceeds immediately to Normal Operations. See Normal 
Operations (AC Power applied) (on page 101).  
Front Panel LED Status Indicators During Initial Power Up, Calibration, and Registration 
 Part 1, High Speed Data Registration 
Step:  1 2 3 4 5 6 
Front Panel Indicator Self Test Downstream Scan Downstream Signal Lock Ranging Requesting IP Address Request High Speed Data Provisioning File 
1 POWER On  On On On On On 
2 DS On Blinking On On On On 
3 US On Off Off Blinking On On 
4 ONLINE On Off Off Off  Off Blinking 
5 ETHERNET 1-4 On On or Blinking On or Blinking On or Blinking On or Blinking On or Blinking 
6 USB On On or Blinking On or Blinking On or Blinking On or Blinking On or Blinking 
7 WIRELESS LINK Off On or Blinking On or Blinking On or Blinking On or Blinking On or Blinking 
8 WIRELESS SETUP Off On or Blinking On or Blinking On or Blinking On or Blinking On or Blinking 
9 TEL 1 On Off Off Off  Off Off 
10 TEL 2 On Off Off Off  Off Off 
  
						

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Front Panel LED Status Indicator Functions 
 
 
Front Panel LED Status Indicators During Initial Power Up, Calibration, and Registration 
Part 2, Telephone Registration 
Step 7 8 9 10 11 
Front Panel Indicator Data Network Registration Complete 
Requesting Telephone IP Address 
Request Telephone Provisioning File 
Restarting Voice Service Telephone Registration Complete 
1 POWER On On On On On 
2 DS On On On On On 
3 US On On On On On 
4 ONLINE On On On On On 
5 ETHERNET 1 - 4 On or Blinking On or Blinking On or Blinking On or Blinking On or Blinking 
6 USB On or Blinking On or Blinking On or Blinking On or Blinking On or Blinking 
7 WIRELESS LINK On or Blinking On or Blinking On or Blinking On or Blinking On or Blinking 
8 WIRELESS SETUP Off Off Off On or Blinking On or Blinking 
9 TEL 1 Off Blinking Off Blinking On 
10 TEL 2 Off Off Blinking Blinking On