Question about HP Compaq NC6400 Business Notebook

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Hp 6400 connected to wireless. Disconnect wireless and connect wired to the same network, and the laptop refuses to aquire an ip address through dhcp

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  • csgillespie May 09, 2009

    fougzki
    Thanks for the help,
    It turned out to be the metric on the TCP-IP interfaces. I had set both wireless and wired to the same metric, and they were in contention for the network when both were connected. I now have the wired set to metric 20 and the wireless set to metric 25, they can now both be connected at the same time without causing the laptop to freak out on having more than one path to the router simultaniously. the wired is priority when connected, and the wireless goes dormant. when the wired connection is disconnected the wireless takes over automatically. ,


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Set the LAN setting in your laptop also. It is to set manually. It is in properties of TCP/IP.


Posted on May 09, 2009

  • fougzki May 10, 2009

    Ok, thanks also for the reply, and input.

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Connected Cisco - cannot get connection to my laptop - reads Limited Connectivity


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I have a hp pavilion dv7-2277cl laptop (64 bit) and a hp laserjet 2605dn. suddenly the communication between the two has gone missing. This is a wireless network and worked until last week. I have down...


The one that is missing in the network is the printer.So try to reconfigure the IP of the printer again using the wireless wizard in the printer manager. Or go to Using the HP Network Diagnostic Utility in Windows - HP Customer Care (United States - English)

Also ; Very seldom does the printer itself cause problems. To determine if you have printer trouble, do the following:
  • If you're using a wireless connection, see if the wireless indicator lamp is illuminated? Can you turn on the wireless radio from the control panel of the printer?
  • Print a Network Configuration page and a Wireless Network Test report from your printer's control panel, if available.
    • Does the Wireless Network Test report indicate trouble?
    • Does the report indicate that the printer is connected to your wireless router, and not to a neighbor's? The network name the printer is connected to will be shown on the both the Network Configuration page and Wireless Network Test report.
    • Compare the printer's IP address [X]
      IP address
      An IP address is a series of numbers by which computers, printers and other devices on a network are known. An IP address is usually issued by the local wireless router (network) from its DHCP service. A device is given an IP address that is similar to the wireless router's IP address. For example, if the wireless router's IP address is 192.168.1.1, a printer may be given an IP address of 192.168.1.5. to the gateway IP address [X]
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    • On some printers, the Network Configuration page will list all wireless networks detected in your area. Is your network listed among those found? Does it have good signal strength?
    • Are there several wireless networks on your same channel or using channels close to your channel? You should use a channel at least 5 channels away from the closest used channel. Consider changing your wireless router's channel to 1, 6 or 11.
  • Are there any error messages on the printer or unexpected blinking lights (consult your manual to determine what to expect)?
  • Reset your printer (usually by removing the power cord from the back of the printer, waiting 30 seconds and then reconnecting the cord. Consult your manual for specifics).
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    A wireless router is networking hardware that allows both wired and wireless devices to connect to a network. When connected to a wireless router, devices such as computers, printers, and other Wi-Fi enabled electronics can share one Internet connection AND connect to each other. Connections can be made to the wireless router through a wireless connection or a wired connection using an Ethernet cable. by unplugging the power cord, waiting 60 seconds, then reconnecting the cord to the wireless router.

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I cannot get my laptop to connect to the internet either wirelessly or hard-wired. I have two other laptops, connected wirelessly, and a desktop connected via hardwire. It recognizes the router but says...


if you are trying through wireless, first unplug the wire from the laptop,

make sure that the wireless switch on your laptop is turned on.

click on start, control panel, network connections/network & internet/ Network and sharing center..

right click on wireless network connection Icon, if it says disable, it means it is enabled already.

then click on status..

from here the steps would differ from OS to OS

then click on Support tab (for XP)
check the address type, it should be "Assigned by DHCP"
and if you see the IP Address starts with 169., it is a bad IP and needs to disable the connection and enable it.

if the connection type is "Assigned Manually, right click on wireless network connection icon and click on properties and click Internet Protocol(TCP/IP) and click on properties, in this window, check the option "Obtain IP Address Automatically from DHCP"

click ok and OK ..

again right click on the wireless network connection icon and click on view available networks... click on your router name and click on connect..

now check the functionality.

if you are using windows 7 or vista,

click on status, click on details for the IP Address..

We see DHCP Enabled as YES or NO instead of "Adress type"in XP

if it says no, it means it is assigned manually. to change to DHCP , right click on Wireless Icon, select properties, click on IPV4 IP address and click properties, then select obtain automatic..

then try again..

hope this works,

Narendra Tirunahari



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have you installed proper drivers,if not download it from the below mentioned link

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and installing the drivers check for the further configuration.

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