How can an ISP lower the speed?

Question

Computer networks

I understand that the topic is hackneyed, but still I will venture to write.
The matter is that my provider does not add speed. The contract indicates the speed of 500 Mbps, in fact I have 80-120 Mbps.
Once called those. support, explained the situation, contacted the specialists and explained to them, they poked something and voila, the speed was 530 Mbps. When downloading, the speed sometimes rose to 57 mb / s. But it only lasted a day or two. The problem is clearly with the provider.
The question is: How can I get a constant and stable speed from them, a second call with a probability of about 100% will solve this problem for no more than two days. I have known these guys for more than a year, there are simply no thoughts on how to bring them to clean water. The funny thing is that I still have a contract with them for 2.5 years, and in order for me to part with this provider, I will have to pay them a lot. Suing is also not an option, because the company is extremely large, it is unlikely that I will achieve anything. Maybe there are some folk methods of dealing with such a problem?

Answer 1

Without the network topology and the technology by which you receive the service, no one will tell you anything, it's like guessing on a crystal ball. This can be either a problem on the part of the provider (loading uplinks in the shelf, incorrect traffic prioritization - you probably drive with a speed test?), or a problem on your part (weak equipment, incorrect network settings).
If you are not an LLC with a PC park, then at home it’s quite a non-trivial task to utilize a 500 Mbps band (if it’s also some household microtic)
Alternatively, put yourself some kind of monitoring (Cacti, or something like this BandwidthD) a fatter download, 100 gigs, preferably something popular, so that it would work for the return. You take metrics, let's say, for a day (at least for the night) and already with this schedule you contact the provider.

Answer 2

How can an ISP lower the speed?

So:

The contract specifies a speed of 500 Mb/s

Most likely, the contract specifies a speed of up to 500 Mbps.
Carefully read the contract, do they really guarantee you a speed of 500 Mbps (or space mb).

The contract indicates the speed of 500 mb / s, in fact I have 80-120 mb / s.

You can basically overclock the network to 500 Mbps only with a torrent, since it is unlikely that many sites will give you files at such a speed.

Suing is also not an option, because the company is extremely large, it is unlikely that I will achieve anything.

If you are sure that you are being deceived - sue, the size of the desk does not matter.
And it would be nice to specify the provider here.

Answer 3

Re-read the contract - as it is formulated - 500 Mbps or up to 500 Mbps? If the latter, then this means that the speed can be up to 500 Mbps, but there is no guarantee that it will always be 500 Mbps. That is, it can be 1 Mbps, 10 Mbps - and this will not be a violation of the contract.
If you want a guaranteed channel (flat-rate) - well, tell the provider. He will only be delighted, only the price tag will immediately soar ten times :) Yuriki with a guaranteed channel is why they pay so much for rather modest speeds.

Answer 4

There are contracts with a guaranteed channel, and there are contracts for hamsters, the speed is up to XXX. Read the contract and then think whether to sue or not.

Answer 5

The question is: How can I get a constant and stable speed from them

Sign an agreement with the allocation of a guaranteed channel, only then do not cry that the Internet is so fucking expensive