Windows7 Wang Suman causes and solutions

Windows7 operating system (and other versions of windows operating system) many friends in the computer encountered the situation of slow speeds. Wang Suman is what causes it?When faced with these difficulties, we can in accordance with the following methods to troubleshoot!1, the network's own problemsYou want to connect to the target site where insufficient bandwidth 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 speedsWe 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 t * 568A standard and t * 568B standard uses only four twisted pair lines 1,2 and 3,6, where 1,2 is used to send, 3,6 for receiving, and 1,2 must come from a winding pair must come from a 3,6-around 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 speedsWhen 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 speedsUnknown 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 equipment 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, replace the new card be able to 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 slowerIn 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 virusE-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; have time to upgrade the computer to install the system patch, and uninstall unnecessary services and close unnecessary ports, to improve system security and reliability.7, the excessive use of firewallFirewalls 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 resourcesYou 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.Add9, cpu reasonsCPU is very busy working, will directly affect the network and computer speed. So when Wang Suman check the CPU operation is necessary10, the system takes too long to useBoot a long time suddenly slowed down after the wire speed, might look to solve the problem restart.11, the server becauseFor the server's network speeds will tend to slow down the virus or networks. However, to solve the problem, not the users do.