【 Weak current College 】 replace the network card required attention to could not allocate IP addresses to resolve

In many people install a network card is a very simple operation, just open the computer chassis, simply plug off!, in fact, the adapter must follow a certain order, if you order the wrong, very likely not as new NIC device assigned IP address, your computer cannot access the symptom.

IP address assignment conflicts

The Office has a computer 10 m old network card in order to keep abreast of the situation and prepare for upgrade to 100M NIC device. The new NIC installed, in order to figure when the device is easy, convenient, directly to the computer's power off, and then open the computer chassis shell, remove the old card device, plug the new NIC device, finally installed computer chassis shell and power that the computer system to start successfully, then the usual method of install the NIC driver and network adapter settings good IP address.

But let people feel the unexpected is that after the IP address assignment, the system should have the same address pops up similar cannot be assigned to two network adapter failure prompts, such faults are of course the computer could not be online.

Encountered such a fault at the prompt, I am puzzled at first, they obviously have the old card to remove a device from the computer is out, and the computer is really only a network connection device, why the system will be two network adapter failure hints?

Subsequently to online search that the symptom, its own to understand what the original author before installing a new network card, not in the correct order to enter the System Device Manager window, the old NIC device driver is unloaded from the system, originally assigned to the IP address of the old card is still not completely uninstalled out virtual NIC holding, so when I go to the previous IP address assigned to the new network device, the system will appear similar to the same address cannot be assigned to two network adapter failure prompts.

Troubleshooting methods for a

To solve the unable to assign IP addresses to the new network connection failure, the only thing we can do is try to be original does not completely uninstall the virtual network card deleted from the system, after the new NIC device assigned IP address.

Installed WindowsXP systems of computer, the system's Control Panel window does not have Windows2000 system "Add/Remove Hardware" feature, to be replaced by "Add Hardware" function, while the WindowsXP System Device Manager window provide "Show hidden devices" function, but this feature does not have deleted the old NIC device displayed, so we naturally not available through the virtual network adapter device functionality from the system to uninstall it.

Taking into account the Windows2000 system "Add/Remove Hardware" function is passed the "system32" folder the following "hdwwiz.cpl" file, which WindowsXP systems kernel almost same with Windows2000 system, then we can use Windows2000 system "hdwwiz.cpl" file in WindowsXP system "Add/Remove Hardware" feature?

So I first logged into one install Windows2000 system computer, open the Explorer window, go to the "Windows"/"system32" subfolder window, locate the "hdwwiz.cpl" file, paste to WindowsXP systems "Windows"/"system32" subfolder window, a final reboot WindowsXP computer system. Pending system reboot WindowsXP is successful, the author opens the System Control Panel window, find the "Add/Remove Hardware" feature icon appears.

Use the mouse to double click the "Add/Remove Hardware" icon, identifying system quite normal to pop up the Add/Remove Hardware Wizard dialog box, click the "next" button, select a system pop-up tips hardware tasks, we must add the wizard interface "uninstall/unplug equipment" project selected, then select "after uninstalling a device,"/"Show hidden devices" option, so that we can see in the wizard window is not unmount the virtual network adapter device clean, next to the old virtual NIC device selected, and click "next" button, then click "Yes" button, this will be the old virtual NIC device completely deleted.

Once the old card device is removed, then the original was that the device uses IP addresses to be released, at this point the author to quickly open a new NIC device properties settings window and go to the corresponding TCP/IP parameter sets the interface, which will release the IP address to your new card device, the IP address assigned, you must have network access to immediately try to find the computer to normal Internet access, it could not allocate IP addresses symptom has been successfully settled.

Troubleshooting methods II

In addition, there is an easy way to let the WindowsXP systems quickly hide virtual NIC device removed, here is a concrete implementation of this method:

First click the WindowsXP systems desktop start "in the" run "command/" from the pop-up system run dialog box, enter the string command "setdevmgr_show_nonpresent_devices = 1", click "OK" button, and then run in the system dialog "startdevmgmt.msc" command, access to the systemThe Device Manager window.

Then click the window menu bar in the "view" menu item from the drop-down menu that pops up executed "Show hidden devices" command, then use the mouse to expand the network adapter options from the options below so we can branch to see the hidden legacy network adapter device, and then select the virtual network adapter device, right-click it, and from the shortcut menu to perform the "Uninstall" command, so you cannot use the old card device completely removed from the system.