Saturday, February 6, 2016
Handling Router And ADSL
If we use ADSL lines of 10 or up to 20 Mbps we will be heavily influenced by the attenuation of our hotline. This parameter measures the signal loss or power between the central and our router , considering that a greater distance from the center, greater attenuation and therefore slowest timing and less stability / reliability of the line. But distance is not everything, and they also produce attenuation shoddy wiring and connections damaged or poorly made both inside and outside of our home.
Therefore, if we can not get our router to sync correctly or have contracted speed constant crashes, we always recommend to connect it directly to the telephone jack ( PTR ) which brings the line to our house or the main connector.
If we speeds higher synchronization or better connection stability at these points after some testing, it is clear that the problem is with the internal wiring of our house. We'll have to check cables, connections in the boxes and more.
Likewise, it is important to remember that more than 3 microfilter on the same line will have problems for the ADSL to work properly, while its absence may also cause some problems connecting to the line devices such as alarms or faxes.
If you have a DSL line of the fastest (the up to 20 Mbps ), you should know that the sync speed can vary from router to router. Such lines only link to the aforementioned 20 Mbps if ideal conditions for minimum attenuation. In practice it is normal to obtain speeds of 12 to 18 Mbps , depending on the speed provided that each router considers appropriate to synchronize line stably.
Here it is interesting that on the line and model of the router may find differences of 1 and 2 Mbps among different manufacturers . Some routers have firmware conservative (like the models that operators give their customers where the fewest technical problems is sought), which synchronize somewhat below the limits to ensure greater reliability .
Others, however, synchronized to the highest possible speed, even if it ebbs our line attenuation by bad connections or wiring in poor condition, may suffer cuts or occasional falls.
Many have questioned us on several occasions about the possible adjustments that could be made in the router configuration to improve performance and transfer speed.
In this sense, the fact is that ADSL lines each operator has its specific parameters configuration, and change will only make the connection stops working. Therefore, no adjustments to the router that can change without further to increase or improve their performance .
Unfortunately, we are absolutely conditioned by the speed assigned by our operator, the quality of our line and the internal installation of our home.
Many users are not aware that their WiFi can be a bottleneck for web browsing . If we have one of the fastest ADSL but our WiFi achieves transfer rates low because of a bad configuration, an old standard or a high level of interference, we will see how we can improve navigation alone with connecting cable.
Still, our recommendation is to always opt for a WiFi access point dedicated high quality and independent from that integrate ADSL routers today. Except specific cases, it is usual that the WiFi routers from many low cost is not an example of compatibility and quality.
Therefore, we can disable WiFi ADSL router and install a WiFi access point as high end Airport Expreme of Apple , or offering companies the level of Linksys , Netgear or D-Link .
By choosing one of these access points it is important to check that supports the 802.11n standard (up to 300 Mbps), and have internal and external antennas that use MIMO technology . This, in addition to forget the bottleneck in the WiFi whenever our teams support this standard (laptops sold in the last year-and a half usually offer), we will improve the coverage of the wireless network.
Following the idea of the previous point, if we set up a WiFi access point dedicated and independent of the ADSL router, it is very interesting type dua l. That is, to allow operation in the band 5 and 2.4 GHz .
The reason is that if we are surrounded by the neighboring WiFi networks, will be subjected to interference and channel stuffing that cause these WiFi around us and that most of them practice, work today to 2.4 GHz. these cases, the best solution is to use an access point with support in the 5 GHz band , which automatically work on a different frequency channels used barely.
Of course, again we need our laptops support this operating frequency, which provide most of the market during the last 12-24 months. If so, our WiFi will operate better and faster than the 2.4 GHz band, in addition to having a stable performance with sustained transfer rates.
It may also be the case that, despite having a good connection and a WiFi-edge without interference nearby, our speed connection to the access point is poor . If you look at the icon in the Windows taskbar referred wireless connection and you click on it, a list of all networks detected around us and their level of coverage is displayed.
The important thing here is to know that, unless coverage, lower transmission rate . Therefore, if we live in a big house with many architectural barriers or several floors, we find that the signal reaches us very weakly and minimum transfer rates.
To resolve this, we can choose several alternatives. The first is to relocate the WiFi router in a place close to you (for example in a middle floor or on top of a shelf). The second is to install our WiFi router higher gain antenna .
For this the only prerequisite is that the router antenna is removable. In that case, we can find an omnidirectional antenna with a minimum gain around 10-15 dBi in online stores like www.wifi-online.es . Prices are reasonable (25-30 €) and in return achieve expand the coverage area of our wireless network and improve speed.
Within the residential market offers different types of technologies for online access to the Internet. The most common hedging, price and simplicity is the ADSL , but has its main limitation on the maximum download speed ( between 10 and 20 Mbps of the highest quality).
Alternatives are essentially reduced to the VDSL (very extended), the Cable and especially the optical fiber , operators such as Ono and Movistar start offering as they deploy a minimum coverage. In the latter case the initial speed of 50 Mbps and with great potential for future growth. In fact, Ono is already announcing 100 Mbps for very specific areas.
That said, although it is easy to think that the more speed the better down, actually not all need the same thing. The goal is to meet our needs spending just, and taking into account the coverage of each technology that reaches our home.
As a guide we can say that for occasional users who use the Internet and do not need much more than surf some sites and manage e-mail , the ADSL lines of 3 or 6 Mbps would be more than enough. The next step would come from regular users who also consume streaming video , have several PCs at home while browsing, etc. In these cases we recommend going at least 10 Mbps lines whenever possible.
Finally, for users who do intensive use of Internet and especially downloading large number of files from the Web, our recommendation is to go for lines up to 20 Mbps or, if possible, some of the new based on fiber optics .
What is important to note is that, if we hire services digital TV operating via the Internet will lose part of the contracted bandwidth. For Imagenio and ADSL 10 Mbps, for example, with the decoder on have at our disposal only about 6 Mbps to navigate from the PC. One thing to keep in mind if our line is not too fast, think about hiring such services.
In Windows 7 there are some additional settings that you can modify to optimize certain aspects of our networking. An example is the ability to control the size of the TCP receive window that, as in previous versions, the default is set to 64 Kbytes.
This means that communication between your PC and a remote server using TCP / IP , the information is broken into packets of 64 Kbytes. When you receive these 64 Kbytes connection is cut, it is confirmed that the package has arrived correctly and a new one is requested.
In very fast broadband connections, especially large downloads, this means losing time we could use to receive larger packets. That's theory, because sometimes may expand the TCP Receive Window have the opposite impact just because, by increasing the size, the chances that the package arrives incorrectly multiply and thus, must be retransmitted again after testing. Yet it is an interesting test.
To execute this command line 7 with administrator rights ( Start / All Programs / Accessories and right click on Command Prompt , where pincharemos in Run as administrator ) introduce netsh int tcp set global autotuninglevel = [value] , where we to replace [value] by: disabled, higlyrestricted, restricted, normal and experimental .
In the first case, the self-tuning packs Windows is disabled. From there, the remaining options allow you to handle more packages and grades (where normally the default of 64 Kbytes), while Option experimental ( packages of up to 16 Mbytes ) is only useful for extreme cases. The latter may have a negative impact on the connections at the high number of retransmissions that may be needed in certain circumstances.
Another interesting setting (only for Windows 7 and 2008 ) is the one that refers to the algorithm CTCP ( Compound TCP ), which manages the burden of TCP connections and TCP receive window .
By default, this algorithm is deactivated at 7, but can be activated with this command executed on the command line with administrator rights: netsh int tcp set global congestionprovider = ctcp while to disable (the default) will introduce netsh int tcp September Global congestionprovider = none .
In general, if we indicate a window size larger TCP reception and have a broadband connection of high speed, the activation of this feature should improve our performance in downloading / receiving data .
Another interesting for a more fluid navigation point is to use a DNS server as fast as possible . These servers listed in the network configuration of your machine, are what Windows uses to resolve the IP address of any web pages or services you use everyday. Therefore, if a DNS server takes two or three seconds to return the IP of a website, our feeling may be slow and not very smooth navigation.
An alternative is to stop by the page http://bandaancha.eu/analizador-dns , where we are shown some of the DNS servers of the best known operators ordered by resolution time. In the same way, we can also try the offering www.opendns.com , although not the fastest to be physically in the US.
With this information in hand, we can play to change the configuration of Windows DNS servers and verify the changes. To do this, go to Start / Control Panel / Network and Internet / Network Center and Internet / Change adapter settings , where we click the right mouse button on our Internet and pincharemos on Properties .
In the new window, we double-click Internet Protocol Version 4 , and in the next window that appears, introduce new DNS servers in the bottom two boxes after clicking on Use the following DNS server addresses .
A component that can slow enough internet connections are security suites . Such packages include traffic analyzers and services that monitor all connections and data packets for malware and threats. Even some install a plug-in into the browser to check the safety of the sites even before visiting. This makes loading times of websites accuse tremendously to have or not have one of these packages installed .
If we are advanced users and we know what we do (and open), we can dispense with these suites and install any style free antivirus Microsoft Security Essentials . Now if we are very concerned about security, it's a result that we must accept.
Finally, keep in mind that current computers are running a lot of background processes that connect to the Internet for the most varied tasks . From the popular Skype or Messenger , even the antivirus or Windows updates, via Java , Flash Player or cloud services type Dropbox or SugarSync . They make periodic connections to the Internet and check the status of updates, files or service.
Except severe cases (such as when a large update or Dropbox / SugarSync is discharged has to synchronize a large amount of data), consumption is minimal. However, if we want to optimize our connection limit is important to remove those residents who do not need at all and can consume bandwidth.
In Start / All Programs / Home can find some of the applications that are loaded at boot Windows desktop. Likewise, we can go to the system registry ( Start / All Programs / Accessories / Run , which will type Regedit and will press OK ) to search for In both, we will find the programs that load at startup operating system .
Throughout the text are some tricks to try to optimize and accelerate the operation of the network connection. Except for rare cases, it will be small improvements that should be checked by some external event.
In the end it is, above all, to check the actual speed at which your PC for Internet browsing , rather than the link speed of the router or the speed of downloading a particular file. Keep in mind that depending on the type of content, charging the remote server or the processes we have in the background, the differences can be huge .
On the Internet, there are plenty of tests to measure the performance quite accurately, although we recommend you opt for some hosted on servers in Spain, such as www.testdevelocidad.es . And it is that the results with servers located in the US, Asia and even Europe too dependent nodes link our operator with the rest of the world and congestion of networks that we have to go through to get them.
When running the test will close any other browser that stay open, we will quench the remaining connected to our own network equipment and, moreover, the optimum would disable any service or program that makes use of internet (Windows update, upgrade antivirus, Skype , Messenger , etc.). Thus, no more traffic will be consumed and thus can get actual numbers as possible.
In any case, these tests (you can find more in www.adsl4ever.com/test/ ) are only indicative as they depend on many factors beyond our control. What is certain is that they allow us to get a good idea of how effective our line and thus able to determine whether any of the measures we make has real impact on performance.
The sheer number of users who today makes use of a WiFi network is so high that it is easy to have problems with our connection, this gives an element that was not previously well known paper much prominence. We talked about the WiFi channel . If a network is the path from a router to a device, each access channel is a different way to make that journey. Therefore, if all residents of the building are using the same path, the speed will be lower.
Because of this, choose the correct channel WiFi becomes an essential task if we want to get the most juice possible to your Internet connection. Therefore, we will learn to know the perfect channel and set an example from a particular router. We will use the program inSSIDer a free software , available for Windows and Linux , which will help us in the process.
Choosing the WiFi channel means bear in mind certain details. Current networks in Europe are divided into thirteen useful channels and frequency of each overlaps the four adjacent, ie the two preceding and two subsequent. Therefore, the first thing to bear in mind is that the ideal is five channels away from the busiest .
We explain with an example. Channel 1 also responsible to some extent Channels 2 and 3. On 5 also occupies channels 3 and 4. Therefore, the channel 1 and 5, a distance four channels, interfere with each other in the 3. That said, 1 seems a very wise choice, since it has no past, only later. The problem is that there are already many operators that give the router with that preset channel. The same applies to channel 6, which is also frequently chosen by five channels away 1. E equal to 12 and 13.
So, it's best to see what specific situation we each of us . You can also configure the channel as an automatic choice . But this is not recommended , since it chooses the free WiFi channel, even if next to each other busy.
inSSIDer help us consider what channel use networks that are within our reach. The others do not concern us, since, if they are not detected by our devices obviously can not interfere in our network. We can download inSSIDer from the web to its developers , pressing the button Download .
Will access a different section of the website where we are told that the download should start automatically within 15 seconds. If it does not, click on the link here , which appears in the first paragraph of text.
To install the program, we will go to the folder where you have downloaded the file. Execute it to open the installation wizard and will press Next in the various windows that appear until you find a window to put Installation Complete . You just have to click on Close to complete the process.
Let's Start and run inSSIDer . Chances are that as soon launch it, recognize the WiFi card and start scanning alone. If this does not happen, it is sufficient if we choose the network card of our team in the upper right and you press Start , which will become a button Stop once you start working. If you think you will not know what your network card, do not worry, you normally see only one.
One way or another, we will be faced with a table that shows all nearby networks and many details about them, including their channel. To display the graph of channels that we are interested, click on the button 2.4 GHz Channels , so we see color range occupied by each network. In the case of the image which are configured it is red. Channel 1 there are three networks, while at 4 and 9 there is in each.
Therefore, for this example, we choose the channel 13 , because this will prevent interference with any other network. In case they are two networks that's set, we should not think that when the same user can put them on the same channel. On the contrary, the closer the WiFi hotspots, more important is the distance between channels .
As a last detail, it should be noted that it is recommended to do this at the moment have more activity networks around us. If we do it at night , which is the time when many routers are off, it will not be very effective . The best time is usually in the afternoon, when the activity is higher.
To configure the WiFi channel, we will have access to our router and make adjustments. This process we do with a particular device, so that each reader must remove essentially to apply in your particular case. On the Internet you can find how to do this for your router model writing Change WiFi channel in (make or model of your router).
The gateway is an essential element to access the router. You're likely to know this information; but if not yes, we will have to find it by accessing the details of our connection. To do this, click on the wireless icon that appears in the Windows toolbar and then click on Open Network and Sharing Center resources . This is achieved with the configuration panel network connection .
With the settings panel open network, we have to press that button is accompanied by literal Wireless Network , bringing a new screen where the current activity of our connection shown will be displayed.
Just press on details to be shown a new window where a complete list with all our data connection. What interests us is the Gateway , which in our case is 192.168.1.254 . The write down careful not to make mistakes, and close all windows, since we will not use the.
Open the browser and write in the address bar the number we have targeted. Actually, this figure is the direction that is our router, so that, when writing the address in the browser, are accessing the router. Most often, a display window credentials asking for a username and password.
If you have never played this, you need to enter the default data, you can find in the manual, or searching the Internet "and password (router model)." Most often, the username has to leave it blank or admin . The password is also usually admin or 1234 . In our case, a router of the brand Billion , the username and password are admin .
Each router is different, so we can not tell you clearly how to perform this step. However, let's score some common guidelines for all cases. Since we want to change the channel on which issues the WiFi network, the aim will access the wireless configuration.
Chances are you're watching a control panel with a sidebar where all menus and accessible sections appear. Section we seek is called Wireless , WLAN , Wireless Setup or just Wireless . In our case, the name is WLAN , so click on it and the section where you want to make changes opens.
Once you have accessed the wireless configuration settings will be as simple as locating the adjustment that has to do with the channel. If the interface is in English, it is sufficient to recognize the word Channel .
In our case, it called Channel ID and a menu that lets you choose between automatic or a default channel. As determined before, we choose the channel 13 and finish saving the configuration.
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