User Manual

Cable Modem User’s Manual
DHCP Server
PC connected to the cable modem can automatically get a private IP address from the DHCP server of cable modem
before cable modem is on line. The following steps will show you how to get an IP address from DHCP server of
cable modem before cable modem is on line.
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1. Click “Start“, point to “Run“, and click to open the “Run“ windows.
2. Enter “winipcfg“ in the “Open“ field. Click “OK“ to execute the winipcfg and show the “IP
Configuration“ window.
3. Select the “Ethernet adapter“ to show the IP address. Press “Release“ and “Renew“ if the PC is not accessing
the Internet. After the cable modem is on line, you need to press the “Release“ and “Renew“ to get a new IP
address from your ISP’s server.
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1. Click “Start“, point to “Run“, and click to open the “Run“ windows.
2. The Run dialog box appears. Type “cmd” in the “Open” field, and then click “OK” to execute the command.
3. You will enter the dos mode, type “ipconfig”, press “Enter” on your keyboard, and you will see the IP address
your computer get from the cable modem.
4. If PC is not access Internet, type “ipconfig /release”, and press “Enter” on your keyboard to release the IP.
5. Type “ipconfig /renew”, and press “Enter” on your keyboard to renew the IP. You can repeat the steps until your
computer gets the correct IP.
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1. Click “Apple menu“, point to “Control Panels“, and click “TCP/IP” to open the “TCP/IP” window.
2. If the iMac gets an invalid IP, select “Using DHCP Server” in “Configure” field. Click the “Close box” at the
upper left corner to close the “TCP/IP” window.
3. Click the “Save” in the prompted message box.
4. You need to wait about 2 minutes and open “TCP/IP” window to see the new TCP/IP status.
Renew PC IP Address
There is a chance that your PC does not renew its IP address after cable modem is on line and the PC cannot access
the Internet. Please follow the procedures below to renew PC’s IP address after the cable modem is on line.
1. Click “Start“, point to “Run“, and click to open the “Run“ windows.
2. Enter winipcfg in the “Open“ field. Click “OK“ to execute the winipcfg and show the “IP
Configuration“ window.
3. Select the “Ethernet adapter“ to show the IP address. Press “Release“ and “Renew“ to get a new IP address
from your ISP’s server.
4. Select the “OK“ to close the IP Configuration window.
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