Why is the uplink speed of 4M broadband so slow?

ADSL (Asymmetric Digital Subscriber Line) is a new way of data transmission. It is called an asymmetric digital subscriber line loop because of the asymmetric upstream and downstream bandwidths. Your upload speed is indeed a bit slow, it should be able to reach about 100k under normal circumstances, you can try the average speed of uploading in several ways, such as uploading files to different servers, to see if there is a difference, and the upload speed is also related to the network time period Slowly study, the telecom is irresponsible, and it does feel slow to report for repair.

The telecom broadband network has been said, so I don't have to reply. He'll be fine, go to the official website and check it out.

If you want to have high-speed uploads.

Only change the fiber.

ADSL upload is just not powerful.

Obviously, your friend is definitely not going to use ADSL access.

PS: Speaking of which, the ADSL here is limited to 512kbps (64kb s) for both telecom and unicom

There is a limit to the upper limit of telecom broadband, whether it is a few megabytes of broadband is 70kb, hey Many people have complained about this problem, bear with it, you can let your friends send it to you with QQ email, otherwise it is relatively slow, 4M generally refers to **speed.

It is also 100M broadband, how can there be a difference between 4M and 20M uplink.

The same is 100m broadband, how can there be an uplink 4m and 20m difference Hello dear, when installing broadband, the salesman will say 100m broadband, 200m broadband, talk about 500m broadband. But why can't it be used at this rate? In fact, it is not the salesperson's false propaganda, but the ** rate when we actually use it should be the broadband bandwidth divided by 8.

That is, 100 megabytes of broadband, the maximum rate of normal ** things should be there. The upload rate is generally one-fifth of the ** rate, that is, about 2ms is normal. Your downlink rate of 100M is equivalent to 800 megabytes of broadband, and a 1GB movie is as fast as 10 seconds, which can be said to be very fast.

100m broadband uplink rate 20m refers to the upload speed, for home broadband adsl staring eggplant, it is an asymmetrical structure, that is, its downlink bandwidth is 10 times the uplink bandwidth, for 100m broadband, its downlink rate should be 1 8 of his broadband, that is, 12m and its uplink rate should be 1 10 of the downlink rate, that is, for the uplink rate of 20m, this bandwidth is very hopeful to help you. <>

The uplink speed refers to the speed from the client to the server, and in general, the speed of 4 megabytes (megabytes is just a unit m) of broadband can be solved by the following formula.

4mbs = 4mbs multiplied by 1024 (advance rate, explained below) = 4096kbs divided by 8kbs (this is also the advance rate, explained below) = 512kbs - 10kbs (also advance rate, but this is not necessarily the case) = about 502kb.

Now to explain, the reason why 4MBS is multiplied by 1024 is because now the capacity of the memory (memory, hard disk, ***, etc.) that can be used by the computer is calculated in 1024KB=1MB, because it can be divisible by 2, which meets the shortcomings of the base system, but some manufacturers change the formula to 1000K=1M in order to facilitate the calculation, which is why the hard disk is marked with 500GB, but only 472GB. But you can't say that hard disk manufacturers are short of pounds and two, they think that this hard disk has 500GB on it, the same method, the broadband data transmitted in a second as a small hard disk can be understood.

And then there is 8kbs, this is also a calculation error of the manufacturer, because telecom uses a bit (b) to calculate, but Thunderbolt uses bits (b) to calculate speed, I know this is very, but telecom is like that, in order to publicize, how fast the speed of this broadband is, he deliberately uses bits to calculate, for example, you are willing to say "512kbs broadband, fast!! Or "4mbs broadband, fast!! The results are very obvious, and you will definitely choose the latter.

And then what is going on with -10kbs, you know, the longer the length of the network cable, the more signal loss, so, this advance rate is not necessarily possible that your network cable is very good, directly 512kbs, but what if your quality is poor, 452kbs is not negotiable!

The general optical fiber is 128kbs, and if it is a general network cable, it is about 50-100kbs. This should be a problem with the broadband vent, call 10000 to repair the broadband, such a problem I have encountered, or the nearby broadband is repaired, generally the next day.

4m is 4 1028kbThe normal bandwidth speed is divided by 8 is 512kb s This is the limit speed, but half of it is maintained at about 480-510, please ask, do you use a router or something else, to prevent taking advantage of the network, you will adopt me!

I typed it all out on my phone.

510k s is about that. In fact, when the computer was installed, there was no 4m plus circuit conductors, and that's it.

A total of 4m up and down! The uplink speed is too high to account for the downlink! But if it goes up 30kb, it will be about 350kb down! If you can't reach 200, it proves that your internet speed is only 2m

Dear Telecom users, Hello!

According to your description, the uplink speed of Telecom 4M broadband is generally lower than the downlink speed, it is recommended that you log in to the China Telecom online business hall to use the 10000 network speed test, **See the figure below:

If you need to check the bill and pay the phone bill, please log in to the online business hall of Anhui Telecom (, there are also iPhone, Samsung, Xiaomi and other hundreds of mobile phones at low prices on the whole network, and now you can also enjoy a discount of 50 yuan for 2 yuan.

Theoretically less than 512k s

More than 400k in my house