How to Speed Up Your Internet Connection by Changing DNS

The Domain Name System, or DNS for short, is a naming system for computers and other devices connected to the Internet or a local area network. When you plan to visit a website, you must enter the IP address of the desired site in the address bar of your browser. However, the IP address is a bit difficult to remember. For this purpose, the domain name can be used to access the site. Also, telecom internet subscribers can increase their internet Speed Up by using telecom DNS settings.

DNS application

Simply put, DNS works like a database. This means that the list of names and IPs of each of them is stored in a database, and whenever a question is asked, by referring to this database, it finds the relevant IP and informs the user. This information is connected to a root name server network at the highest level of the domain hierarchy.

Due to the expansion of Internet use and the increase in the number of host servers and the volume of information and network traffic, about 13 main DNS centers have been established as a database for the distribution of Internet names to update Internet domain names in the world.

Importance of DNS

DNS has a great impact on increasing the speed of the Internet. Especially in areas where the internet speed is low. Therefore, choosing the right DNS will improve your internet speed. However, when you use your ISP’s dedicated DNS, all activity under your browser may be monitored. Although it is highly unlikely that ISPs will do this, you have made it possible.

How to find the fastest DNS

DNS speed depends on several factors. Among these commons, we can mention the location, distance from the server, server power, server bandwidth, and other things. To identify the most suitable DNS, you can use these two online services:

DNS Jumper: A free tool to test public DNS and find the best option. To do this, send a test request to the software, providing you with a list of the fastest DNS.
DNSPerf: This tool tests different DNS servers worldwide and lists them on the site.

How DNS works

In DNS, all Internet addresses are located in distributed databases and are not centralized at a specific point in the network. The domain name conversion process occurs when an application, such as a web browser, first applies a parser function library function called a name resolver to request the equivalent of an IP address from a translation machine.

Then the name resolver receives a hypothetical address translated further as an input parameter, generates a query packet (Query Packet) using the UDP method, and sends it to the DNS server address. Also, all host translation machines must already have at least one IP address from a multicast DNS server. After the lookup, this local server matches the IP address with the registered domain address and then returns the response. The name resolver is responsible for delivering the IP address to the application. Then, by obtaining the desired IP address, the application continues its operation.

Increasing the speed of the Internet by using DNS Telecom

Due to the ever-increasing developments and increasing Internet use, especially in recent years, the Internet has played an important role in people’s lives. However, the biggest problem with the Internet is slowness. By changing DNS and using stable and high-speed DNS, you can greatly increase the speed of communication with servers and access to the Internet and avoid interruptions or slowness.

Using DNS servers to increase internet speed

There are many ways to increase internet speed. One of these methods is to increase the quality of the ADSL phone line. Each computer repeatedly requests DNS to change the IP address to the host address. If the internet speed is low, your internet performance may decrease. You can increase your internet speed by using DNS services. The following are among the best DNS services:

  • OpenDNS: Primary IP: Secondary IP: 20867.220.220
  • Google Public DNS: Primary IP: Secondary IP:
  • Level 3 Communication: Primary IP: Secondary IP:

Increase internet speed by setting DNS servers by ADSL modem

If you want to increase the speed of your home internet or internal LAN, you can change your DNS server settings. For this, you need to set the DNS to your case. After choosing an Internet service provider (for example, telecommunications), you must first make sure whether your modem supports DNS Forwarding or not. Next, you must enter the DHCP section and set the Primary and Secondary DNS fields based on your desired DNS address.
Increase internet speed by setting DNS servers by internet receiver

To do this, you must first open a browser such as Chrome and enter the IP address of your modem in the address bar. This address is usually written under the modem. This way, you will enter the settings page of your home modem. Enter Admin in the username and password fields. You should contact your modem installer if the password or username is wrong.

After entering the modem settings management page, select the Advanced option and find the DNS Setup option. In most modems, the DNS option is selected automatically. By choosing the Manual mode, you can change the DNS settings and enter the DNS information of your desired server. After this process is finished, reset your modem.

Increasing Internet speed by changing the DNS of telecommunications in Windows

As mentioned, one of the ways to increase internet speed is to use services such as OpenDNS and Google DNS. You need to set the DNS server to the operating system’s Internet connection program or the operating system’s network connection. One of the most popular of these services is OpenDNS. To use the OpenDNS server as an alternative, you can do this:


  • Open the Windows control panel and enter the Network and Internet options section.
  • Click on Network and Sharing Center option.
  • Select the Connect to Internet option and open the Properties window
  • In the menu that opens, select Internet Protocol Version 4 (TCP/IPv4) and enter Properties
  • Finally, enter the OpenDNS primary and secondary IP addresses mentioned above in the corresponding section
  • After entering the IP addresses, OpenDNS is installed and ready to use

If you want to use other DNS servers, you can do the same steps, but in the end, instead of entering the primary and secondary IP addresses of OpenDNS, use the specific addresses of the server you want.

Fix the problem of the DNS server not responding

The DNS Server not Responding error is one of the common errors that DNS server users may encounter. If you encounter such an error, it is better to check these things as soon as possible:

  • First of all, use another browser like Mozilla Firefox
  • Reset your modem
  • Reset your computer or laptop
  • The firewall may cause the problem, so disable your system’s firewall.
  • Turn the Internet connection off and on through the taskbar in Windows

Fixing the problem of DNS communication

You may encounter DNS problems when using DNS servers. This problem usually has nothing to do with the user, but by using a few simple methods, you can find the cause of the problem and fix it:
Internet connection through other devices

If you encounter a DNS problem, it is better to put your mobile phone in hotspot mode and connect to your mobile Internet at the first stage. If you connect to the Internet, there is no problem with your DNS settings; if the Internet is still disconnected, the problem is with the router.

browser change

The easiest way to fix the DNS problem is to use another browser. For this, you need to download a secondary browser and try to connect to the Internet through it. If your problem is not resolved, it is better to turn off your modem, turn it on again ten seconds later and try again.

Reset the router

One of the fastest ways to fix telecom DNS problems is to reset the router. Using the reset button, which is much smaller than the power button and is located behind the modem, you can reset the device and re-apply your desired settings.

To learn more about the basics of computers and computer networks, you can participate in extracurriculars in the field of computer networks or gain expertise by using the educational packages provided in this field.

Error Server DNS Could Not Be Found

If you encounter such an error, it probably means that your Internet service provider has not updated the DNS. To fix this problem on Windows devices, you can do this:

  • Enter the Windows Control Panel
  • Find the Network and Internet Connections option
  • On the opened page, click on the Network Connection option
  • Now right-click on Dial-up Connection and select Properties
  • In the window that opens, you can change or set the system’s profile and DNS
  • At the bottom of the window is a section for manually entering the DNS address. First, click the following DNS server addresses option on the user and enter the required information in the Preferred.
  • DNS server and Alternate DNS server fields.

Your DNS Server Might Be Unavailable error.

Another DNS error that many users encounter is your DNS server might be an unavailable error. This error is shown when the DNS server you want is not available. To fix this error, you can do the following:

Flashing DNS

Run the Run program in Windows (via the Start menu or the Win+R key combination). In the opened window, enter cmd.exe and press OK. In the Windows Command Prompt window, type these commands and press the Enter key after each one:

  • Type ipconfig /flushdns and press Enter
  • Type ipconfig /renew and press Enter
  • Type config /registerdns and press Enter

Security of DNS servers

Since DNS servers answer all queries and translate all numbers as names of networks and Internet services, they are considered one of the most vulnerable network services. Also, many viruses and malware can change your default DNS server and compromise your security by designating a malicious server as your DNS server. These malicious servers can redirect common websites to new addresses operated by scammers.

Telecom DNS settings in the Android operating system

To change DNS or set it in the Android operating system, go to the phone settings and select the Wi-Fi option. This section will display a list of Wi-Fi internet connection points for your mobile. Tap on the hotspot you are connected to and hold your finger on the screen for a few moments.

Next, two options will be displayed to you. Select Modify Network from these options. Note that on some phones, you must activate the Advanced option to access the settings in this section. On the next page, change the IP Settings option from DHCP to Static. Apply your desired settings by entering the required information in the DNS1 and DNS2 fields.

Telecom DNS settings in the iOS operating system

To make changes or apply DNS settings in the iOS operating system, you must enter the settings section and the Wi-Fi section. Then select the endpoint you are connected to and the tails option (the inverted exclamation mark inside the circle). On the opened page, you can modify the DNS field.
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You may have faced the problem of Internet interruption and sites not opening. In such cases, it cannot be said for the certain problem is your Internet or the site server. In many cases, the desired site can be accessed only by changing the DNS.

Every website has a domain name. But to open a website, only the domain name is not enough, we a, and weneed to access its IP address to communicate. The DNS server is a large database containing the dosites’ domain names and IP addresses, enablingnication. But sometimes you may have trouble accessing a site through a specific DNS server for various reasons. In such a situation, this problem can be easily solved by changing or setting DNS on another server.