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A vulnerability attack that broke out at noon on August 13, (similar to a blaster).
Go up and down the patch on Microsoft's official website. Windows 2000 and later systems will be attacked. The phenomenon is that after a few minutes of surfing the Internet, an error box appears. After clicking, it will be disconnected, the taskbar below will turn white, etc., and it will be normal to restart.
After the patch is applied, the reboot will be normal.
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The cat is broken, check the 4 lights on the cat to see if the network card is still there, maybe there is something wrong with the network card, if it doesn't work, the network network will play **
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I used to be the same, the problem of network resources being occupied, for example, the computer will be disconnected when connecting **, and there may be network problems, your telecom users can call ** to the telecom company is Netcom to ask the network communication company.
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The latest vulnerabilities. A lot of people have this problem.
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When the connection is dropped, observe the cat, the cat has 4-5 lights.
ADSL or LINK This light, is a signal light. Under normal circumstances, after the cat is powered on, it will flash slowly, then quickly, and finally not flash normally.
When it flashes slowly, it is searching for a signal.
When it flashes quickly, it means that the signal has been found and is waiting for synchronization.
When it doesn't flash normally, it means that the synchronization is successful and you can dial up the Internet.
You see if the ADSL or Link light will flash when the connection is dropped. If it flashes, it is mainly a line problem, you can take a look at it yourself, the thin line that the cat came out of, all the way to the junction box, to see if there is rust in the middle, or whether there is a mouse bite, if there is, let the network service provider change the line, or reconnect it.
If the connection is dropped, it is the lan light that goes out, and the local connection appears Hit x Then, one is that the network card is broken, the other is that the cat is broken, and the third is that the line that the network card is connected to the cat is broken. If you are connected to the router, it may also be a router problem.
If the above situation does not appear, then get rid of the router and try it with the cat alone. If it is normal, check the router LAN, use the elimination method to eliminate other users on the router, row it, and get rid of one to see whose reason it is, at a glance. Then tell the user in question to reinstall the system, or else unplug the cable.
If the connection is dropped like a cat, but the POWE power light, ADSL signal light, LAN network card light, are always on and not flashing. It is possible that there is a problem with the port in the computer room, and it is recommended to ask the installation and maintenance personnel to change the port in the computer room.
Most of this content is copied and pasted, but it is really my original, but some questions are repetitive, and typing is troublesome, so it has been modified according to the content of the question!
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If there is an ADSL device, see if the light of the device is normal when it is disconnected.
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This is mostly a line problem, call the customer service for repair. Or the cat is broken!
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