As soon as the laptop uses wifi to access the Internet, it prompts an ARP attack, and the network sp

Does your desktop have a fixed IP address?

It doesn't matter, that address is very much like the address of a wireless router, not a desktop computer.

Also, has your wireless router changed its name? Take a look at your wifi list, and see if the linked wifi is your own.

If you confirm that it is your own router, reset the router, generally routers have this function, and after the reset, restore the factory settings, and then reconfigure it. If it is also prompted, it should be that one of the connected devices has become a broiler, ARP is originally a network attack method through address spoofing, will someone steal your home's wifi signal, that computer or other terminals become the source of attack, log in to the router to find out what link signals, including those who steal other people's signals.

Since your antivirus software can prompt, it should have prevention and detection functions, and you can check your computer and mobile phone first. Then set a password on the router to prevent others from stealing WiFi.

If your machine can't restore the system again, it means that other machines are poisoned, if it's convenient, it's best to let the other three machines kill and disinfect, it's best to use Kaspersky, firewall 360's ARP firewall effect is still good, and it's free. It should be antivirus that can solve this problem, and it is best to restart all the machines and routes after killing. If the machine that has been poisoned has the conditions, it is best to reinstall the grid.

The general address is for wireless broadband routers, how can you use this address for that abandoned Ben, alas, speechless. It is estimated that the IP configuration of your remaining machine is also a mess, so you should find someone to help you adjust it.

Enter the system through "Safe Mode", turn off the network connection, and unplug the network cable:

According to the ARP attack principle, the files in the calling system are deleted. If you delete the dll file, just change the name of the dll to it.

Anti-Attack Files: C: Windows System32

Solution: Create a new empty text document, rename it and copy it to the system32 folder, overwrite the original, if you don't turn off file protection, close it first. Then overwrite the system32 dllcache, then change their properties to read-only, hidden, and finally remove their everyone permissions, just do it!

After the properties of the files are changed to read-only and hidden, and then their everyone's permissions are removed, the virus cannot replace or use it, and ARP will not work, so as to achieve the purpose of preventing ARP.

If the C drive is in NTFS partition format, remove all the permissions, and if it is in FAT format, you can make a read-only one.

360 security guard is still no problem in defending against ARP attacks, it can defend against ARP attacks in the LAN well, you can install one, just turn it on.

Get a good firewall to turn on the anti-ARP and also be invisible in the LAN.

There's a virus or someone using P2P to control your computer. You just need to turn on the ARP firewall.

Turn on the ARP firewall in 360 Web Shield, and if you don't have 360 security, install it.

There is a virus. Or someone attacked it, or the system.

Since the network circulation of the LAN is not based on the IP address, but according to the MAC address. Therefore, the MAC address is forged as a non-existent MAC address on A, which will cause the network to be unreachable, and A cannot ping C! That's a simple ARP spoof.

Circumstance. 1. When a host in the local area network is infected with the ARP virus, it will send an ARP spoofing attack to all hosts in the local area network (referring to a certain network segment, such as this segment) and falsely claim to be the gateway device of the network end, so that the traffic originally flowing to the gateway will be diverted to the virus host, causing the victim to be unable to access the Internet normally.

Circumstance. 2. Some users in the LAN use ARP deception programs (e.g., network law enforcement officers, QQ number theft software, etc.) to send ARP spoofing packets, resulting in the phenomenon that the attacked computer suddenly cannot access the Internet, and can access the Internet again after a period of time, and repeatedly disconnects.

Other devices on the same router may have been infected with viruses.