The length of the network cable connected to the computer and whether it can access the Internet.

The company's router interface is connected to my computer, at the beginning I used a network service operator to connect the network cable, the length is about 3m, OK, the network connection is reached quickly, the status displays: data packets can be sent and received, you can access the Internet. But when I used a long 25m network cable to pull to my office, there was such a situation, the network is connected, the speed is also 100mbps, but I just can't open the network, I opened the status bar to take a look, and found that the data packet is only the number sent is hopping, and the acceptance has always been 0.

I'm sure there's nothing wrong with my computer cable. Originally, I thought it was a thread problem, so I went to buy a new thread, but it still didn't work. But I just don't understand, why is it OK to go up?

And what about a long cord plugged into a friend's desktop? Is my netbook too squeamish? I hope the master can guide the maze.

Satisfactory answer enthusiastic 2010-08-18Network transmission stability and the length of the network cable is also related, the longer the network cable, the more harmful the signal attenuation, it is possible that your problem is that the network cable is too long to cause signal attenuation, try not to use too long network cable, if you have to use the router can add a switch before the computer. Questioner's Comments: Thank you2010-08-25Other(3)Ruziniu Communication Engineer|21767 satisfactory answers2010-08-18Check whether your long network cable is made in accordance with the standard chromatography, generally if you do it according to the standard, it should be no problem, it is rare to see level 32010-08-18Share with other computers!

Follow-up: Can the boss be specific? I don't understand.

What about the sharing method? How does it work? Thank you very much!

That is, to create a local area network. 2010-08-18It is suspected that the network cable is too long to cause signal attenuation!

It is recommended to buy a hub or switch, connect to the Internet cable and share it. If you're using a laptop, you can use a wireless switch or a wireless AP! Follow-up:

The company's router is with wireless connection, but the speed is only 54Mbps, and I think the wired one is 100Mbps, which is twice as fast. So how much does a switch cost?

This is directly related to the quality of the route and the quality of the network cable, generally more than 150 meters of speed has a greater impact.

The speed of the four wires can reach 100m, if your network width is not reached, it will not affect the network speed, and more than it will affect the network speed.

The crystal head is an important interface device in the network connection, which is a kind of plastic connector that can be inserted in a fixed direction and automatically prevent falling off, which is used for network communication, and is named "crystal head" because of its crystal appearance. It is mainly used to connect network card ports, hubs, switches, etc.

There will be an impact, and the network cable also has an aging phenomenon, so the network cable will affect the network speed. 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.

Extended Materials:

The network cable should not be too long, if it is too long and there is no signal, then there is no other solution. 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 should not be too long: the computer can only recognize the language 0 and 1, and the network has to transmit signals 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.

You're talking about a twisted pair cable, right? The theoretical distance can reach 100 meters, but most of the current network cables are not of good quality, so the actual can only reach about 80. Add repeaters to longer distances, or switch fibers.

100 meters, this amount, just theoretically, in practice, it depends on the network cable, the general network cable, at 70 meters of network speed on the stuck

If you have the ability to do it yourself, you can make a power sharer like me, and you can use the network cable to power (12V).