The old computer has an IP address conflict with the network, and the connection cannot be reached

If it is obtained automatically, there will be no IP conflicts. In other words, under normal circumstances, the IP address that has been used will not be obtained.

So, this situation is an ARP attack.

Online and offline killing, or Rising's anti-ARP attack can be turned on. Also, you'd better give each computer a kill shot.

In your case, someone is attacking you with ARP. You** a 360 security guard, in the "Protection" column, just set the "LAN ARP Attack Interception" to on. But this method is a palliative rather than a cure, and the most fundamental way is to prevent him from doing so, or to prohibit him from using it.

It should be that your IP conflicts with the person you are in the same line, and you are fine when he is not on it, and as soon as he gets on you, it shows a conflict, solution: try to set up the IP from the new, and find the number between 1-255 when the IP.

Don't get it automatically, just set it manually.

Your IP is the same as someone else's, change it, try a few more times, and then it may be an ARP virus, and the package will always be issued. Set up a firewall to stop it.

You can manually modify the IP address, don't get it automatically.

The steps to solve the problem are as follows: 1. Modify the IP address: click Start, select "Control Panel"2, then click "Network and Sharing Center"3, enter "Network and Sharing Center", click "Local Connection"4, click "Properties" in the pop-up dialog box5, select "Internet Protocol" in the properties dialog box, and then click"attributes"6. Then select "Use the IP address below" to modify the IP address and click OK.

Whether your IP is fixed, or automatically obtained, if it is fixed to modify it, automatically obtained, restarting the system should solve the problem.

The computer prompts that the IP address conflicts with other systems on the network, indicating that someone is using the same IP as you. If your IP is fixed, you can modify the IP, and the last number of the IP can be modified slightly If you change it to If you are not a fixed IP, it is automatically obtained, it is recommended that you set a fixed IP yourself. This way, you don't have to wait for the computer to get it automatically every time you turn it on.

Directly connected. Method: Run cmd, enter ipconfig all to get an IP, and then set it.

First, restart your computer. If that doesn't work, restart the cat. This is not a big deal.