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Connecting to the Internet • Verifying the IP Address for Windows 7
SB6121 DOCSIS 3.0® Cable Modem • Installation Guide
12
Uncontrolled Document
Verifying the IP Address for Windows 7
1.
On the Windows taskbar, click
Start
.
2.
Click
All Programs
.
3.
Click
Accessories
.
4.
Click
Run
to open the Run window.
5.
Type
cmd
and click
OK
to open a command prompt window.
6.
Type
ipconfig
and press
Enter
to display the IP Configuration.
If an Auto-configuration IP address is displayed, that indicates possible broadband
network problems or an improper connection between your computer and the SB6121.
The Auto-configuration IP address, ranging from
169.254.0.0
to
169.254.255.255
, is
reserved for Automatic Private IP Addressing (APIPA).
Verifying the IP Address for Windows Vista
1.
On the Windows taskbar, click
Start
.
2.
Click
All Programs
.
3.
Click
Accessories
.
4.
Click
Run
to open the Run window.
5.
Type
cmd
and click
OK
to open a command prompt window.
6.
Type
ipconfig
and press
Enter
to display the IP Configuration.
If an Auto-configuration IP address is displayed, that indicates possible broadband
network problems or an improper connection between your computer and the SB6121.
The Auto-configuration IP address, ranging from
169.254.0.0
to
169.254.255.255
, is
reserved for Automatic Private IP Addressing (APIPA).
Verifying the IP Address for Windows XP
1.
On the Windows taskbar, click
Start
.
2.
Select
Run
to open the Run window.
3.
Type
cmd
and click
OK
.
4.
Type
ipconfig
and press
Enter
to display your IP configuration.
If an Auto-configuration IP address is displayed, that indicates possible broadband
network problems or an improper connection between your computer and the SB6121.
The Auto-configuration IP address, ranging from
169.254.0.0
to
169.254.255.255
, is
reserved for Automatic Private IP Addressing (APIPA).
This can occur if the modem is configured to automatically obtain an IP address from a
Dynamic Host Configuration Protocol (DHCP) server. When Auto-configuration is
enabled, Windows will automatically assign an IP address if the cable Modem is unable
to obtain one. Because this automatically assigned IP address is not valid, you will not be
able to access the Internet using the cable modem. Check the following:
•
Your cable connections
•
Whether you can see cable-TV channels on your television
