Why can t I enter the IP address and subnet mask? Mine is a home computer

1. Enter the IP address and subnet mask just to set the LAN, if it is dial-up Internet access, you need to add a broadband connection, then click on the broadband connection, enter the Internet account and password to access the Internet. You can surf the Internet even if you don't have an IP address.

2. If you use a router to surf the Internet, you must set it to the same network segment as the router, and the simplest is to set it to automatically obtain an IP address and automatically assign it from the router. Here's how to set it up:

Follow my input.

Subnet mask: It doesn't matter if the default gateway is or not.

What is not going to work?? Is it not possible to connect to the Internet?

Although you explained the situation, seeing that you didn't say what network you used, so it is difficult for everyone to judge, it is recommended to explain the network you said you are in.

For querying a computer's IP address and subnet mask, it is actually relatively simple. Through various research and data collection, we have finally summarized three methods to review, and now I will share these methods with you.

Method 1. The IP address of a computer is divided into external address and internal address, and for external address, we can take the method of online query to obtain. We can click search, and then we enter the IP character in the search bar, so that we can query the external IP address of our machine in the search results, and the corresponding subnet mask will also be visible.

Method two. There is another way we can check our local IP address, we can open Start and click Run, then enter cmd in the run dialog box, press Enter to open the cmd dialog box, enter the ipconfig command in it, and then press Enter to see the corresponding local IP address, and the corresponding subnet mask will also be seen.

Method three. Of course, in addition to the above two methods, we can also use the network connection to query the corresponding network IP address. We need to click on the signal icon in the bottom right corner of the computer, which is the icon of the two small computers, and then we can click on it to open the Network and Sharing Center dialog.

Here we need to find the network device, and then open the network device management interface, where we can right-click on the network connection icon, and then select properties. After opening the properties dialog, here we can find and open the properties of the IPv4 protocol. At this time, we can see our local IP address, and we will also see the corresponding subnet mask.

First, right-click on "Online Neighbors" and select "Properties".

Then, find "Local Connection" in the window that opens, right-click, and select "Properties";

Third, in the pop-up dialog box, select "Internet Protocol" and click "Properties".

You can check the IP of your computer.

However, what if your computer automatically obtains the IP, and the above method cannot view the IP?

You can try the following method: "Start" - "Run", enter "cmd", enter "ipconfig all", and you can view the IP! It's very complete, you can study it well!

The IP address in the Internet is not like the IP address in the LAN that can be specified and set at will, the IP address is fixed, provided by the network provider, and it can also be said to be the IP address on the Internet in the real sense, so how to check it? If you are a router network user, you can log in to the router to view. You can also use the following general methods to view.

The IP address of the local connection is normal, because it is a private address in the Class A IP address, that is, the address reserved for the LAN.

1. The first byte of a Class A address is the network address, and the other three bytes are the host address;

3. Private address and reserved address in Class A address: it is a private address (a private address is an address that is not used on the Internet but is used in the local area network); It is a reserved address and is used for round-robin testing.

Why do IP conflicts sometimes occur suddenly, because the certificate is in the LAN, the IP addresses of computers, mobile phones and other devices are automatically assigned by the router, when two or more devices are configured with the same IP address, and the subnet mask is also collapsed, IP address conflict will occur. The methods of team-based balancing to resolve IP conflicts are:

1. Restart; 2. Manually modify the IP address of the computer;

3. Turn on the firewall.

It can also be used to avoid IP address conflicts"Static IP address assignment"function, all devices in the LAN parallel flushing network are bound to a fixed IP address, so that you are not afraid of IP conflicts.