The user who uses it finds that the Internet cannot be accessed normally after the computer is connected to the Internet. After using the network diagnostic tool, it prompts that the local connection does not have a valid ip configuration. How should I solve this problem?
If there is a problem with the network, you can use the 360 toolbox to fix it. The location of the toolbox is located in the "+" in the lower right corner of the 360 Security Guard interface, select "First aid kit for network disconnection", and then operate as required. If it still doesn't work, check for the following issues:
Local area connection does not have a valid ip configuration
There are 2 ways to configure the IP address on the computer: "automatically obtain" and "fixed IP"; when the computer is connected to the router or connected to the switch in the local area network to access the Internet, the IP address is generally configured to "automatically obtain", so that The computer can automatically obtain an IP address from the router through the DHCP service.
The reasons for "the local connection does not have a valid ip configuration" can be summarized as follows: 1. The problem of setting the IP address of the computer; 2. The connection between the computer and the router; 3. The DHCP service is turned off on the router; 4. Other problems.
1. The problem of setting the IP address of the computer
(1) When connecting the router to the Internet, you need to set the IP address on the computer to obtain automatically (dynamic IP
(2) If the administrator requests to use a fixed IP address to access the Internet in your network, please fill in the correct IP address, subnet mask, gateway and DNS server address in the local connection.
Reminder: The two steps of appeal (1) and (2) are single choice, not all of them need to be executed, please pay attention to the majority of users.
Second, the computer and router connection problems
To obtain an IP address from the router, the computer must be connected to the router with a network cable (a laptop can also be connected wirelessly); if the interface on the computer is incorrectly connected to the router, the interface between the computer and the router is loose, and the computer is connected. There is a problem with the network cable between the router and the router; the "local connection does not have a valid ip configuration" will appear on the computer.
Solution:
(1) The correct connection method between the computer and the router is: the computer can only be connected to any one of the LAN ports (1, 2, 3, 4) of the router; it must not be connected to the WAN port.
(2), first check whether the network cable interface on the computer and the router is plugged in? Make sure that it is not loose.
(3) If the interface is not loose, please replace a new network cable, connect the computer and the router, and test whether the computer can obtain the IP address.
PS: If the "local connection does not have a valid ip configuration" still appears on the computer after replacing the new network cable, it means that the problem is not the network cable, please continue to read the solutions below.
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