Why does the Internet freeze on my computer? Why is the Internet slow?

• Recovery Mode

The classic scheme for enabling Internet services in an apartment building is as follows: TKD (multiple access point) - twisted pair- a router in the client’s apartment to which client devices are connected via wire and Wi-Fi.

Typical complaints from subscribers are that the speed is lower than the tariff, and regular “freezing” occurs when working on the Internet, which is expressed by taking a long time to open pages in the browser, video interruptions, loss of connection with game servers, etc. This behavior is irregular in nature, and most often occurs during the hours of greatest user activity from approximately 18:00 to 23:00, depending on the city.

There are a few simple steps, which will allow us to determine possible reason similar problems and solve 90% of user situations. They are lower.

The first logical step is to check the speed.
To fulfill this point, you should minimize the number of transit devices through which the Internet is connected in the apartment. Ideally, you should connect the operator cable directly to the computer and configure the connection on it. After that, check your speed on resources that provide a similar service, for example, speedtest.net. This is a special service that can send data from high speed– which, alas, cannot be said about all resources on the Internet.

If you managed to achieve a speed close to that specified in the tariff, then there are no problems with the operator’s equipment and the cable to the apartment. If the speed is significantly lower, the connection is constantly interrupted, you should contact the technical support of the provider for diagnostics by the operator and, possibly, repairs.

Please note that all “home” contracts always have wording in the spirit of “up to 10 Mbit/s”, where the most important part is “up to”. Without this pretext, only corporate agreements are possible, where the stripe is guaranteed: for this guarantee you pay about 2-3 times more. But, nevertheless, the difference is more than 5-7% with the speed of the tariff, which is repeated with a direct connection to different time days - this is the problem of the provider.

The second step is diagnosing the router
Let's assume that you get normal speed “directly”. Now we need to look at intermediate devices. There are quite old models of routers that are still used by users. These models have significant performance limitations that do not allow them to implement tunnel connections (L2TP/PPTP) at speeds above 20-30 Mbit/s. Examples of such routers are DIR-300, ASUS WL-520 and others. Unfortunately, the only way to solve the speed problem in this situation is by replacing the router with a more productive one, or using a tunnel-free solution, if your telecom operator has one.

By the way, we are soon going to switch to IPoE instead of L2TP.

• On DHCP, minimize the user network from 255 hosts to a minimum number of +3-5 guest devices using the network mask /27 - 32 hosts, /28 - 16 hosts, /29 - 8 hosts. I recommend choosing /28, because You are unlikely to have more than 16 devices on your home network.
• Select the router address neither at the beginning nor at the end of the network, for example, for the network 192.168.0.0/28 (255.255.255.240), set the router address to 192.168.0.8. Recommended network 192.168.10.32/28 (255.255.255.240), router address 192.168.10.40. Paste the new router address onto the router.
• For home devices, map MAC+IP bundles in a DHCP pool so that the devices are tightly bound. Configure Wi-Fi access restriction based on the MAC addresses of your devices (but then guests at your home will not be able to connect or you will also have to register the MAC addresses of their wireless devices).
• Change the administrator password to access the router; use at least 8 characters as a password, taking into account changing case, as well as numbers and symbols. You should immediately write down the administrator’s login password somewhere safe; After such operations, we always get a lot of requests “how to reset your password.”
• Set up Wi-Fi: hide SSID, set WPA2 encryption, enter a password of more than 8 characters, case sensitive and numbers/letters.

Fourth step - select a channel
After the router has been configured, you need to pay attention to the Wi-Fi channel used on which the router and wireless clients operate. Many telecom operators, when connecting their clients, immediately provide a router in addition. Thus, almost every apartment connected to the Internet has wireless Wi-Fi device.

Now the overwhelming majority Wi-Fi equipment operates in a frequency of 2.4 GHz; in total, at this frequency there are 14 channels on which wireless devices can operate. In addition to frequency, significant parameters are signal-to-noise ratio, signal strength and bandwidth. If all devices operate on the same channel, then conflicts will arise between them, which for the user will look like regular “freezes”, i.e. freezing when opening resources in the browser or interruptions in the broadcast of video and sound.

Therefore, you need to choose a channel on which there are the fewest competitors with a signal strength level close to yours. Another option could be to “transition” wireless devices to the 5 GHz band, but for this there must be technical feasibility at the router and at the wireless devices themselves.

Utilities that will help analyze channel occupancy are Wi-Fi Explorer for Mac, or inSSIDer for PC.

The screenshot of the WiFi Explorer program shows that the two networks Asus293 and r-r-r...miau are close in signal strength to each other and a conflict may arise, but they are on different channels, the first network is on channel 11, the second on channel 12, which solves the problem.

Summary
There is no need to worry too much about the location of the router in the apartment relative to the windows or the influence of the microwave: quite rarely this causes any problems. It is recommended to place the router “in the middle” of the apartment with priority placement to the most frequent point of work with wireless devices, for example, in the living room or office, and not in the kitchen or in the closet in the hallway. In terms of device conflicts, in my experience there was only one case when a subscriber experienced radio noise in the 2.4 GHz range when a Samsung HW-H450 sound bar was connected via Bluetooth, acting as music center. This was only discovered empirically.

In normal cases, there is no need to adjust the signal strength. In multi-room apartments with concrete walls Sometimes it is important to study the radio broadcast with utilities like those given above in order to make a decision about increasing the signal strength.

According to statistics, about 90% of requests were resolved using such simple methods.

Today, almost no apartment or a private house can't do without home internet, providing unlimited Internet access from all connected devices. Unfortunately, not every user can boast of high-speed and stable Internet. Below we will discuss several simple tips, which will slightly improve the quality of the Internet.

Most likely, the tips given in the article will seem quite banal to many users. But if it is not possible to increase the quality of the Internet by switching to a more expensive tariff or to another provider, then such recommendations may be the only way out of the situation.

Users who complain about low Internet speeds often do not take into account the number of network programs running on different computers (devices).

For example, if computers connected to the network use torrent clients that are currently “downloading” files, then one should not be surprised that sometimes even a web page cannot load normally in the browser. If possible, check whether software cause of low Internet speed, close all network programs on devices connected to your home network.

To track programs that consume Internet traffic, there is big choice programs, for example, NetLimiter. If necessary, in this program you can create a limit on the amount of traffic consumed by programs, although, as a rule, when it comes to programs with an increased appetite for traffic, they have built-in tools for limiting speed.

If a problem with brakes while surfing the web occurs, for example, on a computer, but on other devices everything works quite correctly, you should suspect viral activity, which in most cases affects the network.

First, check your computer for threats using the scanning function of your antivirus or, for example, using the free Dr.Web CureIt utility.

Additionally, you should check the hosts file - and if changes are detected in it, you will need to return it to its previous form. This is described in more detail on the official Microsoft website.

Again, such a problem should only be observed in relation to the computer on which the antivirus is installed, and not to all devices connected to the network as a whole.

Any antivirus includes various instruments, which allow you to check and protect various aspects operating system. In particular, an antivirus can perform network scanning aimed at ensuring security during web surfing, but as many users note, it is the antivirus that can lead to slowdowns on the Internet.

To check whether your antivirus is the culprit in this situation, try disabling it for a while, and then check the functionality of the Internet. If it really has improved, you should open the antivirus settings, in particular, you are interested in the network scanning functions, and disable these tools.

Many users, for example, who independently connected their home Internet, are faced with the problem of low Internet speed, which can arise due to cable damage.

If you know that the Internet cable has fractures, twists, kinks or other damage, you should definitely call a technician from your provider who can test it throughput your cable and, if necessary, replace it.

Often, users have been using old equipment for years, but at the same time they continue to be surprised that they are the owners of one of the low Internet speeds in the city.

First, check your current tariff and connection speed. For example, if in your case you use an ADSL connection, then you should not count on speeds higher than 11 Mbit.

If the Internet speed matches (or is close to) that stated by the provider in your tariff, then you should pay attention to the latest tariffs: the provider often provides it at a much lower cost high speed internet and includes the necessary equipment completely free of charge.

If in your case the Internet connection is made exclusively via wire, then this is not your case.

At the same time, if you suspect that your wireless network uninvited guests connect, especially when you have an obvious password for the wireless network or you don’t have one at all, you should try to change the password for your Wi-Fi. If you don't know how this task is carried out for your router, try performing a search query indicating the model of your router - probably instructions for correct replacement Wi-Fi password is already available on the Internet.

When faced with a problem in the performance of the Internet, you should not take all headache on yourself - this problem also applies to your provider. If you find it difficult to understand what caused the Internet speed to slow down and slow down, you should not delay calling your provider.

Many inexperienced users are faced with the following problem: low speed Internet, and do not know what to do in this situation. In this article I would like to talk about the reasons and answer the question: “Why does the Internet slow down?”

The reasons may be different, from bad weather (if you have a 3G modem) to problems with communication with the provider.

First, you need to make sure that the speed is only low for you and not for all customers of your Internet provider. Ask your friends, family or anyone else. The main thing is that they have exactly the same Internet. Ask them if they complain about the speed and if it is very different from what the provider claims.

If everything is fine for everyone else, and the Internet is slowing down only for you, then you need to look for a problem on your computer. There may also be failures in the connection line to the provider.

Solving the question “why the Internet is slow”: step 1

First you need to find out the real speed. More precisely, what is the possible speed, and what fraction of this can you use. It is necessary to scan traffic on your computer. For example, "NetWorx" or something else. There are plenty of such utilities.

After you install it, launch it. Then you will need to right-click on the tray icon and click “show graph”. You will see a window with a graph of speed changes. Please note that it is not displayed maximum speed, and the one that is currently in use.

And now you need to do the following. Do nothing and watch the monitor for changes. That is, do not use a browser, any correspondence programs, Skype, etc. Quit all programs that use the Internet.

If suddenly the graph shows that you are online and some data is being downloaded to your computer, then most likely the Internet is very slow because of this. You do nothing, and the Internet is already being used. That is, you yourself percentage remains less speed.

Solving the question “why the Internet is slow”: step 2

It is necessary to determine what exactly the World Wide Web is using at this moment. In general, this is quite easy to do if you have Nod 32 antivirus installed. If not, then look for some utility for this on the Internet.

If Nod, then right-click on the tray icon and click show network connections.

You will see all programs that are connected to the Internet. Turn them off. Deny them access. Most likely, these are some kind of viruses or “updates” of some programs. For example, Adobe.

If there are viruses, then you need to scan your computer for them.

To configure Internet access for each program, you need to slightly adjust your firewall. Open the window with the antivirus and go to the settings, where we set the interactive filtering mode. Now, if some program wants to go online, the antivirus will ask you whether it can connect or not. Rules can be specified either temporarily or forever. If you saved it forever, you can reconfigure it at any time.

Solving the question “why the Internet is slow”: step 3

If you do not have such problems, and only you use access to the World Wide Web, then the problem is something else.

If you have a 3G modem, check the antenna level. Perhaps you have bad connection and that is why the speed is very low. There is no need to connect the modem to the back of the system unit and place it close to the wall. It is necessary to ensure that the antenna can freely receive the signal. If this is not possible, then connect the device via an extension cord.

If not 3G, then try updating the drivers to network card. If that doesn't help, check all the cables. Due to wire breaks or oxidation, the quality of data transmission may be significantly lower than it should be.

In other words, you need to look for problems in the connection between you and the provider or with the PBX.