Network slows down 23 kinds of common solutions

The following are common problems leading to the slow network, as well as some common network solution to the problem, in this order to the netizens.

1, the network's own problems

You want to connect to the target site where insufficient Dell Inspiron 9300 Battery or server load is too large. Approach is simple, make another time or another to a target site.

Second, network cable problems led to slow speeds

We know from the four pairs of twisted-pair cable in accordance with strict rules and closely twisted together, used to reduce crosstalk and background noise. Meanwhile, in the T568A and T568B standards standards using only the four twisted pair lines 1,2 and 3,6, which is used to send 1,2, 3,6 for receiving, and must come from a 1,2 around the right, around 3,6 must come from a pair. The only way to avoid crosstalk as possible to ensure the data transfer. I found in practice is not the correct standard (T586A, T586B) produced by cable, will be dangerous. As follows: one case is just the beginning very slow speeds when used; the other case is the normal starting speeds, but after a period of time, speed slow. The latter case, the performance of the desktop is very obvious, but check with the laptop but showed normal speeds. For this problem I discovered after years of practice, standards for not making the correct cable is also due to slow speeds at the same time and the quality of the card. General performance of the network card desktop computer than notebook computers, therefore, with the exchange troubleshooting, the use of laptop computers and can not rule out the normal testing speeds do not follow the standard cable making this a problem. We are asking all by T586A, T586B standard network cable to suppress, in the detection of failure can not be replaced with laptop computers to desktop computers.

Third, there is a network loop leading to slower speeds

When the network nodes involved are not many, when the structure is not very complex, a phenomenon seldom occurs. However, in more complex networks, often redundant backup lines, such as when accidentally connected to constitute a loop. Such as network cable to your computer from the network center of a room, and then received a computer from the computer compartment of a room. At the same time there are a backup from the network center line directly connected to the computer compartment, if the several lines, turn, constitutes a loop, data packets will continue to send and check data to affect the overall network speed. This situation is difficult to find. To prevent that from happening, requires us to running network 线 Be sure to develop good habits: cable marked Mingxian the label, there is a place to do Beiyongxianlu records. When suspected of such failure occurs, generally use the partition section stepwise approach.

4, the network device hardware failure caused by broadcast storms caused by slower speeds

Unknown device as the primary means of discovery, broadcast in the network plays a very important role. However, with the increase in the number of computers in the network, the number of broadcast packets to increase dramatically. When the number of broadcast packets to 30%, the network transmission efficiency will be significantly decreased. When the network card or network equipment is damaged, we will continue to send broadcast packets, resulting in broadcast storms, so that network traffic paralyzed. Therefore, when the network device hardware failure can cause speeds are slower. When such a failure is suspected, the first replacement method can be used to replace the hub or switch assembly line equipment failures excluded. If the HP pavilion ZV6000 Battery does not malfunction, turn off the power after the hub or switch, DOS used under the "Ping" command on each of the tests related to the computer to find the faulty computer card, replacement of the card can resume normal speeds. Cards, hubs and switches are the most prone to failure caused by slow device speeds.

5, the network bottlenecks leading to the formation of a port speeds slower

In fact, the router WAN port and LAN ports, switch ports, hub ports and the server network card and so may become network bottlenecks. When the speeds slow down, we can use the peak hours in the network, using network management software, see the router, switch, server port of data traffic; also be used Netstat command data traffic statistics of each port. Accordingly confirm the location of network data flow bottleneck, try to increase the bandwidth. Many specific methods, such as the replacement of the server network card to 100M or 1000M, install multiple network cards, divided into multiple VLAN, change the router configuration to increase bandwidth, can effectively alleviate the network bottlenecks that can maximize data transfer speed.

6, worms, slow speeds caused by the virus

E-mail circulated through the worm's impact on network speed more and more serious, significant harm. This virus causes the infected users as long as the Internet to keep out a mail, select the user's personal computer virus, random document attached to the user machine's address book to a random address on the mail. Hundreds lined up some of the spam messages sent out, and some has been returned in droves to heap on the server. Cause significant congestion of backbone Internet, speed significantly slower, so that nearly paralyzed the LAN. Therefore, we must in time be used to upgrade anti-virus software; computer have time to upgrade, install system patches, and uninstall unnecessary services and close unnecessary ports, to improve system security and reliability.

7, the excessive use of firewall

Firewalls can also lead to excessive use of slow speeds, approach it to say, uninstall the firewall just under unnecessary to retain a powerful enough.

8, system resources

You may load too many programs running in the background application, please reasonable load software or remove unwanted programs and files, vacated the resources to achieve the purpose of raising speeds.

9, the system reserved bandwidth

Professional version of Windows XP by default reserves 20% of the bandwidth, in fact it is our individual users do not have much effect. Their idle is not as fully utilized, as follows: In the "Start → Run", type gpedit. msc, open the Group Policy Editor. Find the "Computer Configuration → Administrative Templates → Network → QoS Packet Scheduler" and select the right "to retain the bandwidth limit", select "Properties" to open the bandwidth limit may retain the Properties dialog box, select "Enable" button, the numerical change 0. After this reset can release the reserved bandwidth of 20%.

10, binding agreement on too many cards

This situation is common in the local area network users. Card on a number of agreements, if bound, when the data through the network card, the computer would Dell Latitude D610 Battery a lot of time to determine which protocol to use the data to send, then the user will feel slow. The solution is: using a network card bound only PPPoE protocol to connect to ADSL, to provide external access to the Internet connection, local area network with another piece of card and other binding agreements, to fulfill their job, improve performance, so that the client will increase Internet speed .

11, ADSL equipment, poor cooling

ADSL equipment work more than fever, usually pay attention to cooling. Many users the ADSL equipment and routers, hubs, etc. in a cabinet, and did not conducive to heat, impact on the normal work of ADSL. ADSL and other equipment not on the cabinet, to be kept separate ventilation and cooling equipment between the left channel, do the best room temperature, generally ambient temperature should be controlled in 10 - 30 ℃.

12, access to the Internet interface error

This is because the Windows system, IE Internet Connection Wizard to specify access to the Internet interface error caused. EnterNet 300 (virtual dial-up software) using a type of virtual LAN dial-up, while the IE default to use ordinary dial-up. IE when browsing to find the first dial-up interface, can not find the dial-up later on there to find the proxy server inside the LAN, and finally will find EnterNet 300 interface, it will be very slow. Only need to run the Internet Connection Wizard again, select the LAN mode, and removed the automatic search for the proxy server can be resolved.

13, can not bind TCP / IP protocol

Can not bind TCP / IP over the network card driver is not installed correctly, quality problems and the PCI card slot bad. Should first device manager to delete the network card driver, reboot and install drivers; if not good, then for a PCI card slot; not good for a card.

14, telephone lines and poor quality

ADSL technology requires high quality of telephone lines, ADSL is currently used RADSL (Rate Adaptive DSL). If the bureau to the user between telephone lines in a certain period of time, interference by outside factors, RADSL the pros and cons based on line quality and transmission distance, dynamically adjust the user's access speed. If access to the foreign site, bandwidth and speed will be subject to export other site lines, equipment configuration and other factors, requires coordination and cooperation to solve the whole network. Line problems mainly construction did not follow the construction standards of quality left hidden, such as mice did not result in additional plastic casing snapped line; patch panels or other materials quality issues led to the jumper connection is bad; the user deposited in the decoration of the room when the dark line failures.

15, QQ can not networking?

It needs some settings. Select from the QQ panel "System Parameters" command, click on "Network Settings" tab, the original "dial" to "LAN access Internet" HP pavilion zd8000 battery it.

16, computer hardware and software problems

Mainly in the network card hardware failure or bad or not properly installed; computer motherboards and network cards are not compatible; computer configuration is low, in particular, caused by lack of memory to run slow. Software failure was mainly due to computer users do not understand the knowledge, in the course of misuse, leading to damage to the operating system error or dial-up software can not access; users to browse some pages, the system problems in processing the backup dial-up software inadvertently deleted; computer reload system, dial-up software is not installed, etc.. The software failure as long as you can rule out re-install dial-up software.

17, a web page can not open a long time?

The reason is the peak surfing the Internet, Xu Duo users access the same hot spot Wang Zhan, as the site server, but to Chu Li, Huo will appear Wangluosudu narrow bandwidth, slow, Zhangshi Jian Wang Ye can not open the case, it is best to avoid Gaofengshiduan Internet access or change access to other sites.

18, thanks to the Internet node failure

Circuitous routing network system automatically generate the network is slow. Please be patient system recovery.

19, as "cat" in their own quality problems, caused by slow access. Please replace the high-quality "cat."

20, telephone lines, electrical targets too low, due to slow access, please replace the high-quality line.

21, outside the "cat" and host of the connection speed is low, due to slow connection speed, please re-interface parameter settings.

22, the low-end machine to run advanced operating system, due to slow access, please re-select the appropriate computer operating system and browser.

23, due to improper browser settings, caused by slow Internet access, please re-set the number of days to retain the page, the browser's cache directory set up the hard disk transfer rate, and appropriate increase in capacity.

Most dial-up user's computers with Windows system, often hear HP F2024 F2024A F2024B complain of slow access, but we found one thing: the time when that fact has been slow to break up, but then the Internet icon still exists, which creates the illusion of a still online. If you know Youdianhuake Naqi telephone Jianbie, Huan can mouse Lazhi access the icon, press the right check "Status" to observe whether there are any data, such as a period of time may have failed to Shujushoudao identified lines have been disconnected, only to re-dial.