Recently, the author learned from a large number of IT forums that a large number of Internet users have encountered such a network problem, the computer can not connect to the network, use the built-in network diagnostic tool diagnostic prompt: "local The connection does not have a valid ip configuration. This kind of network failure is mostly in the Windows 7 operating system that uses the router to share the Internet. The Windows 7 system is currently the most mainstream operating system. Before, it has encountered many network failures, but as long as Everyone is familiar with the Windows 7 system, and there is no effective ip configuration error for solving similar local connections.
Set whether there is a problem, such as whether the DHCP function is turned off (DHCP means automatically assigning an IP address to the computer). If you turn off this function, you need to manually set the IP address. For how to enable or disable the DHCP function of the router, I suggest you read the following 2 Article:
>>How to use wireless router basic settings diagram for wireless routers
But through many forums, many users have not moved the router, nor have they set up any DHCP function. Internet access is still good, there are many situations that can't be done later. In this case, you can try the following methods:
1. Set the network IP address to automatically obtain the IP address.
Step: Enter “Network and Sharing Center” ”, click on the left side of the "Change Adapter Settings", as shown below:
Right-click "local connection", select "ldquo; attribute", such as Figure:
Local connection property settings
windows7 local connection property settings interface as shown above, enter the windows7 local connection property settings interface, first we will "Internet Protocol version 6 (ICP /IPv6) & rdquo; in front of √ Remove, and then select "Internet Protocol Version 4 (ICP/IPv4)", click on the properties below to set the IP address to be automatically obtained, as shown below:
windows7 local connection automatically obtain IP address settings In general, After setting the IP address to automatically get the confirmation, the computer can restore the Internet. If it is automatically obtained, the user needs to use the fixed IP address setting. How to fix the local IP address in the router setting field (http Many articles in ://www.jb51.net/network /list644_1.html) have been introduced in detail, and friends who don't understand can learn.
If the above settings have no effect, it is recommended that you check the router settings, if there is any problem with the network, such as directly using the cat dial-up Internet to check if there is any problem with the network. If there is no problem, check the router again. Finally, it is still not possible. It is recommended to reinstall the network card driver. As long as there is no problem with the settings, generally these operations are enough to help you solve the general network failure, the solution to the local connection does not have a valid ip configuration for everyone to introduce here, I hope to help everyone.