Whether the quality of the network card has an impact on Internet access

Today's network cards are generally adaptive to 10-100M, so the difference is generally not big. But if you want to buy it, you have to buy a good quality one.

First of all, the quality of today's network cards, to be honest, has not had much impact

It has a certain impact, but the general network card is now integrated, and the independent network card is slightly better.

The impact is great, and the quality of the network cable also has an impact.

Basically, it doesn't have any effect.

Also, why is the internet speed slow?

If it's always been like this, there are several possibilities:

1. It may be because the configuration of your machine is not good (you should consider upgrading the hardware);

2. It may be that the bandwidth you access is not enough and the Internet speed is slow. If it's been like this recently:

If it's something like this recently, it could be:

1. It may be poisoned, you can find something suspicious in the "Task Manager"; Or use the "Internet Assistant" to analyze and process;

2. It may be that your hard disk is running out of free space, and you should clean up the disk;

3. It may be that you have too many "temporary Internet files", consider cleaning up;

4. Is the webpage you are opening too big? You can just open the text;

In addition, some malicious** may also affect the speed of opening a web page.

Clean up your computer with a tool such as Internet Assistant or Optimizer.

The network card driver has little impact on the network speed, its function allows your computer to connect with the Internet, and the main impact on the network speed is: the speed of the machine itself; How well the whole network where the computer is located is tightly interlocked; Also, it is very important to make sure that there are no viruses in the computer, otherwise the network resources will be invaded by a large number of people!

In addition, I will teach you a small method that can increase your Internet speed by about 20%.

QoS packets can be reset.

Windows XP provides users with a new set of networking programs"Quality of Service (QoS packets).", and when installing Windows XP, the system sets it as a caller by default, reserving about 20% of the bandwidth. In other words, if you don't use QoS, you're losing 20 percent of bandwidth.

In fact, the program is only effective for large enterprise networks, and not for individual users or small business users, especially ADSL users. It's best to disable this program, doing so can increase the speed of your network connection by about 20 percent.

Here's how it should be:

1. Click "Start" - >Run" and enter it in the text box""to start"Group Policy"Utensil.

2. In the tree directory on the left, double-click "Computer Configuration|".Manage templates |Network directory entry, select the QoS Packet Invoker entry.

3. On the right side of the window, click the "Limit Retained Bandwidth" tab item. Select "Properties" to open the properties dialog box, select "Enabled", enter the number "0" in the "Bandwidth limit" box, (note that just disabling it without setting the reserved bandwidth to "0" will not free up the occupied bandwidth), and finally click "Confirm" to exit the Group Policyr.

The role of the network card can be regarded as a channel for data exchange between the computer host and the network, and the quality of this channel is directly related to the speed of our Internet access.

This is not necessarily, if the network card driver is not installed, it is not possible to access the Internet, it is possible to install it, the speed of the Internet is only related to the size of the broadband, this is not related!

Almost, I'm going to say it, and if the network card driver and the network card model are different, you can't access the Internet.

Yes! But for now, it's negligible! Unless the network card is an ancient artifact or has quality defects and bugs in itself.

The network cable is a national standard, and the unqualified network cable cannot leave the factory. Therefore, the quality of the network cable has little impact on the network speed. However, the length of the network cable has an impact on the network speed.

Theoretically, the maximum length of a network cable cannot exceed 100 meters. If the network cable has strong performance, tensile resistance and shielding interference, the longest length can reach about 120, and it is not recommended to be longer.

The reason why the network cable can't be too long:

The only languages that the computer can recognize are 0 and 1, and the signals that the network has to transmit are 0 and 1. These signals become current when they pass through the network cable, and the current intensity of the network cable is between -15V and +15V, and there is resistance when the current is transmitted through the network cable. Therefore, according to the principle of high-voltage transmission, the longer the line, the greater the voltage level must be used to transmit electricity.

If the network cable is too long, but the voltage is so low, the signal will be weakened until it is lost. Therefore, the network cable should not be too long.

Does a network cable really affect the internet speed?

Under normal circumstances, it does not affect, unless the length of the network cable exceeds 150m, and secondly, the crystal head connection method is inconsistent, sometimes the two heads can be replaced, and the network cable also has aging phenomenon, so the network cable will affect the network speed.

It will definitely affect, the transmission technology of the network cable determines the maximum distance that can be transmitted 100 meters, and the network cable of the first class, the ordinary network cable is also seventy or eighty meters, if the distance is long, it is necessary to increase the equipment in the middle.

There will be an impact because there will be crosstalk on the lines in the connector. The crosstalk of twisted pair wires has been reduced and reduced to the greatest extent by winding the two wires, but there is an additional joint in the middle, and there is no way to reduce the crosstalk in this joint. But the impact shouldn't be too big.

Nowadays, most of the optical fiber networks are used, and the distance does not directly affect the bandwidth, but only the latency, and the performance of the application is very bad under high latency, and even the bandwidth cannot be used well, which is similar to bandwidth loss.

The network cable is bad and directly affects the network speed, the impedance of the poor quality network cable is large, so that the attenuation of the network signal is relatively large, and it also has a great impact on the network bandwidth, especially the gigabit network requires the network cable to ensure the quality, and the length of the network cable also has a direct impact on the network speed. Therefore, when using a network with a long distance and high bandwidth, you must use a network cable. Hope it helps.

2G optical fiber does not seem to have this in China The factor that affects the network speed is the length.

Now if you use it normally, you don't need to replace the 8-core copper wire. Changing the network cable is not noticeable to the user.

The main difference is in the copper content. The amount of copper affects the resistance, and the resistance affects the attenuation of the DC signal, which affects the speed of the network. The actual situation shows that within 30 meters, the good or bad network cable will not affect the network speed, but if it is more, the impact will be obvious.

When it reaches 100 meters, no matter how good the network cable signal is, it is very weak, and it needs relay equipment. The above explanation assumes that the environment is ADSL or cell broadband, and RJ45 twisted pair networking.

The network cable does not have a great impact on the network speed, but it will definitely do.

Downstairs nonsense.

The quality of the network cable has a lot to do with the network speed.

The network cable has an impact on the network, first of all, the quality, under the premise of ensuring the quality, the wiring should be concise and not entangled. In addition, the twisted pair should not pass near electrical appliances such as TVs, more than 15 meters will have a certain attenuation of the signal, according to the quality level of the domestic network cable, more than 90m will have problems, more than 100 meters can not be used.

If the ordinary network cable is more than 50 meters, it is necessary to add relay equipment (such as routers and switches), otherwise the signal will decay rapidly, and the network cable of more than 70 meters can hardly be used, and the ideal state is not more than 35 meters. . . If it is a shielded wire, it can be slightly longer.

Please do not turn on the computer when there is thunder in summer, if it is turned off, please unplug the power supply, lightning strikes are the easiest to damage the network card.

Seriously, wireless network cards are very rubbish, very stable at the beginning, and they start to drop frequently in half a year, so it's best to use a network cable.

It is not easy to break, and it is generally said that there is no problem with it for a few years. However, it is normal for individual problems to occur.

It's okay. It won't break easily.

A poor quality NIC will affect the transmission rate

The network card will have an impact on the network speed, from the Internet to the entrance port, the speed is determined by the bandwidth of the network, and the internal data transmission of the computer is determined by the baud rate of the network card, it is considered that there is no impact, mainly because the computer is now installed 10 100 adaptive network card, few people install km network card and more advanced network card, because there is no comparison, so I feel that the network card and network speed are not very related. The independent NIC is better than the integrated NIC because it occupies less system resources and will not have interruption errors.

The setting of the network card will also directly affect the speed of the workstation:

When the working state of the server, switch, and workstation does not match, such as the server, the workstation network card is set to the full-duplex state, and the switch, hub, etc. are all working in the half-duplex state, a large number of collision frames and some FCS check error frames will be generated, and the access speed will become very slow, and it may take 5 to 10 minutes to copy a 20MB file from the server.

The performance is highest when the network card at both ends of the network connection is in full-duplex mode, while the network card on the PC can easily be set to half-duplex mode by the user inadvertently or intentionally through the software. Monitoring the connection speed is important to find out if the duplex settings of the two ports match. Experts recommend employing a software called Multi-Router Traffic Grapher to monitor the performance of the network connection to determine that a full-duplex setting is turned on at both ends.

Obviously, computers can't do it! Now the configuration of outdated computers is the price of cabbage, you can replace one!

Whether the network card is good or not has nothing to do with the network speed. At 2m, you can measure a speed of 180kb s, which is normal. 1m measured at 190kb s impossible.

Unless there is a peak that will reach 190 but will not stay for long, 1 second at most. It doesn't matter what the configuration is. Unicom that person doesn't understand computers.

Rattle away.

The speed of the Internet is related to the configuration (performance) of the computer, the routing (transmission) and the server provided.

It is recommended to replace Unicom and use telecom instead.