Netgear Cm400 High Speed Cable Modem Docsis 3 0 User Manual

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2
2.   Manage and Monitor
After you set up the cable modem, you do not need to log in to the cable modem for normal 
operation. However, you can log in to the cable modem to change some very limited settings and 
monitor the cable modem. In the unlikely situation that you experience problems with the cable 
connection and cannot get an Internet connection, technical support might ask you to log in to 
the router.
This chapter contains the following sections:
•Log In to the Cable Modem
•Specify the Cable Connection Starting Frequency
•View Cable Modem Initialization
•View Cable Modem Status
•View and CLear Event Logs
•Change the admin Password
•Reboot the Cable Modem
•Reset the Cable Modem to Factory Default Settings 
						

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12 CM400 High Speed Cable Modem 
Log In to the Cable Modem
After you set up the cable modem, you do not need to log in to the cable modem for normal 
operation.
To log in to the cable modem, you must use a web browser such as Microsoft Internet 
Explorer 5.0 or later, Firefox Mozilla 2.0 or later, Safari 1.4 or later, or Google Chrome 11.0 or 
later.
To log in to the cable modem:
1. Launch a web browser from a computer that is attached over an Ethernet cable to the 
cable modem or from a computer that is connected to a WiFi router that is attached over an 
Ethernet cable to the cable modem.
2. Type http://192.168.100.1.
A login screen displays.
3. Enter the cable modem user name and password.
The user name is admin. The default password is password. The user name and 
password are case-sensitive.
The BASIC Home screen displays.
Specify the Cable Connection Starting Frequency
The starting frequency for the cable connection is automatically generated. For most Internet 
connections, you do not need to specify this information. If you need to enter a starting 
frequency, contact your Internet provider.
To change the starting frequency:
1. Launch a web browser from a computer that is attached over an Ethernet cable to the 
cable modem or from a computer that is connected to a WiFi router that is attached over an 
Ethernet cable to the cable modem.
2. Type http://192.168.100.1.
A login screen displays.
3. Enter the cable modem user name and password.
The user name is admin. The default password is password. The user name and 
password are case-sensitive.
The BASIC Home screen displays.
4. Select Cable Connection.
The Cable Connection screen displays. 
						

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 CM400 High Speed Cable Modem
5. 
In the Starting Frequency  field, type a number. 
6.  Click the  Apply button.
Your change takes effect.
View Cable Modem Initialization
You can track the initialization procedure of the cable modem and get det\
ails about the  downstream and upstream cable channel. The time is displayed after the cable modem is 
initialized.
The cable modem automatically goes through the following steps in the pr\
ovisioning process: 1.  Scans and locks the downstream frequency and then ranges the upstream ch\
annels.
2.  Obtains a W
 AN IP address for the cable modem.
3.  Connects to the Internet.
To view the status of the cable modem initialization:
1. Launch a web browser from a computer that is attached over an Ethernet c\
able to the 
cable modem or from a computer that is connected to a WiFi router that i\
s attached over an 
Ethernet cable t

o the  cable modem.
2.  T
ype  http://192.168.100.1 .
A login screen displays.
3.  Enter the cable modem user name and password. 
						

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CM400 High Speed Cable Modem 
The user name is 
admin. The default password is password . The user name and 
password are case-sensitive.
The BASIC Home screen displays.
4.  Select  Cable Connection.
The Cable Connection screen displays.
The Startup Procedure section displays the initialization progress.
The Downstream Bonded Channels section displays the status of each chann\
el.
5.  T
o see the Upstream Bonded Channels section and system time, scroll down.\
View Cable Modem Status
You can view some basic information about the cable modem.
To view cable modem status:
1.  Launch a web browser from a computer that is attached over an Ethernet c\
able to the 
cable modem or from a computer that is connected to a WiFi router that i\
s attached over an 
Ethernet cable t

o the  cable modem.
2.  T
ype  http://192.168.100.1.
A login screen displays.
3.  Enter the  cable modem  user name and password. 
						

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 CM400 High Speed Cable Modem
The user name is 
admin. The default password is password. The user name and 
password are case-sensitive.
The BASIC Home screen displays.
4.  Select  ADV
 ANCED.
The Cable Information pane displays.
 
The Cable Information pane displays the following:
• Hardware V
 ersion. The version of the cable modem model.
• Firmware Version. 
The version of the cable modem firmware.
• Cable Modem Serial Number . 
 The serial number of the cable modem.
• CM Certificate. 
 The status of the cable modem certificate. If Not installed displays as \
the status, contact your cable Internet provider.
For information about using the Reboot button, see Reboot the Cable Modem on page  17.
For information about using the Factory Reset button, see Reset the Cable Modem to 
Factory Default Settings on page  18.
View and CLear Event Logs
Event logs capture important cable modem events.
To view and clear the event logs:
1.  Launch a web browser from a computer that is attached over an Ethernet c\
able to the 
cable modem or from a computer that is connected to a WiFi router that i\
s attached over an 
Ethernet cable t

o the  cable modem.
2.  T
ype  http://192.168.100.1 .
A login screen displays.
3.  Enter the cable modem  user name and password.
The user name is  admin. 
 The default password is password. The user name and 
password are case-sensitive.
The BASIC Home screen displays. 
						

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CM400 High Speed Cable Modem 
4. 
Select  ADVANCED > Administration > Event Log. 
The Event Log screen displays.
The Event Log screen shows the following information:
• T
ime. The time the event log entry was recorded.
•Priority . 
 The severity for the event log entry.
• Description. 
 A description of the event log entry.
5.  T
o refresh the log screen, click the  Refresh button.
6.  T
o clear the log entries, click the  Clear Log button.
Change the admin Password
You can change the default password that is used to log in to the cable m\
odem with the user 
name admin.
To change the password for the user name admin:
1.  Launch a web browser from a computer that is attached over an Ethernet c\
able to the 
cable modem or from a computer that is connected to a WiFi router that i\
s attached over an 
Ethernet cable t

o the  cable modem.
2.  T
ype  http://192.168.100.1.
A login screen displays.
3.  Enter the  cable modem  user name and password.
The user name is  admin. 
 The default password is password . The user name and 
password are case-sensitive.
The BASIC Home screen displays.
4.  Select  ADV
 ANCED > Administration > Set Password .
The Set Password screen displays. 
						

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 CM400 High Speed Cable Modem
5. 
Type the old password.
6.  T
ype the new password in the  Set Password field.
7.  T
ype the new password in the  Repeat New Password field.
8.  Click the  Apply button.
Your change takes effect.
Reboot the Cable Modem
Rebooting the cable modem disconnects all computers from the cable modem\
’s local area 
network (LAN). After the cable modem is finished booting and reestablishes a connection\
 
with the cable provider’s network, the devices reconnect to the cable modem’s LAN.
To reboot the cable modem:
1.  Launch a web browser from a computer that is attached over an Ethernet c\
able to the 
cable modem or from a computer that is connected to a WiFi router that i\
s attached over an 
Ethernet cable t

o the  cable modem.
2.  T
ype  http://192.168.100.1 .
A login screen displays.
3.  Enter the cable modem  user name and password.
The user name is  admin. 
 The default password is password. The user name and 
password are case-sensitive.
The BASIC Home screen displays.
4.  Select  ADV
 ANCED.
The Cable Information pane displays. 
						

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CM400 High Speed Cable Modem 
 
5. 
In the Cable Information pane, click the  Reboot button.
A confirmation message displays.
6.  Click the  OK button.
The cable modem reboots.
Reset the Cable Modem to Factory Default Settings
To reset the cable modem to factory default settings, you can use either \
the Reset button on  the back panel of the cable modem or the Factory Reset software button. However, if you 
changed the default password to access the cable modem and lost the pass\
word, you must 
use the Reset button on the back panel.
After you reset the cable modem to factory default settings, the user na\
me is admin, the  password is password. 
 The LAN IP address is always 192.168.100.1. You cannot change 
this LAN IP address.
Use the Reset Button on the Back Panel
CAUTION:
This process erases all settings that you configured in the cable modem.\
To reset the cable modem to factory default settings:
1.  On the back of the cable modem, locate the  Reset button.
Reset button
2. Using a straightened paper clip, press and hold the  Reset button until the Upstream and 
Downstream LEDs light amber. 
						

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 CM400 High Speed Cable Modem
3. 
Release the Reset  button.
The configuration is reset to factory default settings. When the reset i\
s complete, the  cable modem reboots. 
 This process takes about one minute.
WARNING:
To avoid the risk of corrupting the firmware, do not interrupt the 
reset. For example, if you are connected to the web management 
interface, do not close the browser, click a link, or load a new page. 
Do not turn off the cable modem.
Use the Factory Reset Software Button
CAUTION:
This process erases all settings that you configured in the cable modem.\
To erase the settings:
1. Launch a web browser from a computer that is attached over an Ethernet c\
able to the 
cable modem or from a computer that is connected to a WiFi router that i\
s attached over an 
Ethernet cable t

o the  cable modem.
2.  T
ype  http://192.168.100.1 .
A login screen displays.
3.  Enter the cable modem  user name and password.
The user name is  admin. 
 The default password is password. The user name and 
password are case-sensitive.
The BASIC Home screen displays.
4.  Select  ADV
 ANCED.
The Cable Information pane displays.
 
5.  In the Cable Information pane, click the  Factory Reset button.
A confirmation message displays. 
						

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20 CM400 High Speed Cable Modem 
6. Click the OK button.
The configuration is reset to factory default settings. When the reset is complete, the 
cable modem reboots. This process takes about one minute.
WARNING:
To avoid the risk of corrupting the firmware, do not interrupt the 
reset. For example, do not close the browser, click a link, or load a 
new page. Do not turn off the cable modem.