The reason for the laptop card
First, the network itself
The target website you want to connect to is located on a server with insufficient bandwidth or heavy load. The solution is simple, please change the time or change the target website.
Second, the network cable problem caused the network speed to slow down.
One situation is that the network speed is very slow when it is first used; In another case, the network speed was normal at first, but after a while, the network speed slowed down. The latter situation is very obvious on desktop computers, but it is normal to check the network speed with laptop computers. After years of practice, I found that the slow network speed caused by the network cable not made according to the correct standard is also related to the quality of the network card. Generally, the network card performance of desktop computers is not as good as that of notebook computers. Therefore, when using the switching method to troubleshoot, using a laptop to detect the normal network speed cannot rule out the problem that the network cable is not made according to the standard.
Third, there is a loop in the network, which causes the network speed to slow down.
However, in some complex networks, there are often redundant spare lines, which will form a loop if they are inadvertently connected. For example, the network cable is connected from the network center to the computer room 1, and then from the computer room 1 to the computer room 2.
Fourth, the broadcast storm caused by the hardware failure of network equipment leads to the slow network speed.
As the main means of discovering unknown devices, broadcasting plays a very important role in the network. However, with the increase of the number of computers in the network, the number of broadcast packets will increase dramatically. When the number of broadcast packets reaches 30%, the transmission efficiency of the network will decrease obviously. When the network card or network equipment is damaged, broadcast packets will be sent continuously, which will lead to a broadcast storm and paralyze network communication.
Five, a port in the network has formed a bottleneck, resulting in slower network speed.
In fact, router WAN port and LAN port, switch port, hub port and server network card may all become network bottlenecks. When the network speed is slow, we can use network management software to check the data flow of routers, switches and server ports during the peak period of network use; You can also use the Netstat command to count the data traffic of each port. On this basis, the location of network data circulation bottleneck is determined, and its bandwidth is managed to increase. There are many specific methods, such as changing the server network card to 100M or 1000M, installing multiple network cards, dividing multiple VLAN, changing the router configuration to increase bandwidth and so on. , which can effectively alleviate the network bottleneck and maximize the data transmission speed.
Sixth, the influence of the worm virus causes the network speed to slow down.
Worms spread by mail have a more and more serious impact on the network speed, which is extremely harmful. This virus causes infected users to keep sending emails as soon as they get online. The virus randomly selects documents from the user's personal computer and attaches them to random addresses in the user's computer address book to send emails. Hundreds of such junk mails were sent out in line, and some of them were returned in batches and piled up on the server. As a result, individual backbone Internet appears obvious congestion, and the network speed obviously slows down, which makes the local area network almost paralyzed. So be sure to upgrade antivirus software in time; Computers should also upgrade and install system patches in time, uninstall unnecessary services, and close unnecessary ports to improve the security and reliability of the system.
Seven, excessive use of firewalls
Excessive use of firewalls will also slow down the network speed. Needless to say, uninstall unnecessary firewalls and keep only one powerful enough.
Eight. Insufficient system resources
There may be too many applications running in the background. In order to improve the network speed, please load the software reasonably or delete useless programs and files to release resources.
Where's the laptop card?
1: Clean up disk fragments and system junk files regularly.
Now more and more antivirus software and computer housekeepers have the function of cclean file. Cleaning up junk files regularly will make our computer faster. Besides, there's another one named? Disk fragmentation? Computer garbage, seemingly inconspicuous, is often the chief culprit that slows down our computers. So-called? Disk fragmentation? , also known as file fragmentation, that is, temporary files generated during hard disk reading and writing. These temporary files are usually generated when we download or store files. If they are not accumulated for a long time, they will occupy a lot of virtual space. The steps to clean the disk are very simple. Enter the computer management window, left-click to select drive C or other disks that need to be cleaned, right-click to enter the properties interface, and select the tools window, and you can see the options for debris cleaning!
2. System slimming
Many people think that the computer card changes because too much software is installed, so even a new computer doesn't want to install too much software, for fear of slowing down. Indeed, this is a solution, but it is far more than that. The following points can make your system more. Slim? Oh!
1. Set virtual memory. There is a lot of space in our hard disk to adjust the virtual memory, and the called memory varies with the size of each program. Because the system will automatically manage virtual memory, the frequent transfer of programs brings a heavy load to our computer. Are you online? My computer (computer)? Right-click to select a property and click? Advanced? Select from the options? Efficiency? Option to set virtual memory.
2. Check the application or driver. Some programs will slow down the computer when the system starts. Can we turn on the computer and go in? Safe mode? Start checking whether the software has crashed the system. If you use it? Safe mode? Boot discovery is faster than normal boot, and it is likely that some software has slowed down the computer. Press F8 or Ctrl to enter safe mode when starting the machine!
3. Organize desktop icons regularly. Many people's office computers open their desktops, all of which are application icons. These icons will not only reduce our work efficiency for a long time, but also slow down the operation efficiency of the computer! There is a simple reason. Windows needs to load these icons every time it starts. The more icons, the longer the loading time. So, make your desktop cleaner!
3. Computer cleaning
Many people only pay attention to maintaining the appearance when they buy their computers home, but seldom care about cleaning up the dust inside the computers. But the slowdown of our computer may be caused by internal dust accumulation in many cases. Computer cleaning requires certain operating skills. It is suggested that Xiaobai can find professionals to clean up the ashes.
4: Reinstall the system
If none of the above has solved your problem, and you want to make the computer faster at a lower cost, try reinstalling the system! It is said that this can solve more than 90% software problems of the computer and make the computer faster. There is a simple reason. After reinstalling the system, the computer registry will be reset, and there will be fewer programs to be loaded when starting up, so the computer will naturally be faster.
5: Upgrading hardware
Upgrading hardware is the most obvious solution to improve computer speed. Only need to spend less money, can make the old computer have a completely different experience. Generally speaking, adding memory chips and replacing hard disks are the two fastest ways to improve computer performance. Open the back cover of the computer and replace it easily.