Slow internet speed is a common problem that affects users from time to time. Sometimes it is a wrong network configuration, other times the problem may be with the PC or even with the ISP itself. Whatever the problem, we always wonder how we could increase the speed of the internet and continue our work.
Luckily, many common problems related to DNS, TCP, and IP addresses can be solved using the Windows Command Prompt. Here are some of the Command Prompt commands that you should try to use when your internet speed is slower than normal.
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How to increase internet speed
1. Renew the IP address
Many problems can affect your current IP address and make your Internet connection slow. It could be an IP conflict or even a problem on the DHCP server. Fortunately, in most cases, a simple reset of the IP address is all it will take to fix these problems.
You can use two Command Prompt commands to first release the connection with the current IP address and then renew it. See how you can do it:
- Type the command ipconfig / release and press Enter. Some large columns of text will appear.
- Here, type ipconfig / renew and hit Enter again. This should reset your IP address and resolve any internet slowdowns that are due to an IP address problem.
NOTE: Keep in mind that it is normal for the same IP address to be reassigned as it was previously. The point here is to disconnect and create a new connection.
2. Empty DNS resolver cache
Your PC keeps a list of the host names of the websites and the IP addresses that you visit and stores them in the DNS resolver cache. This makes it easy to create a connection to a website that you previously accessed.
But there is a possibility that any corruption in said cache will lead to slower or no access to websites. This may not slow down your current internet, but it could slow down your overall browsing. If this is the situation you are having, you can flush the DNS resolver cache to fix the problem.
To do this, enter the command ipconfig / flushdns and press Enter. You should see a confirmation saying “DNS resolver cache flushed successfully.”
3. Reset Winsock
Windows uses multiple network sockets to exchange information, and programs can install LSPs (Layered Service Providers) to manage traffic and redirect it to the correct path. But any corruption in the sockets or an infected LSP could lead to a slow connection, website redirects, or even no access to the websites.
If this happens, you can reset the Windows network sockets to their default values. To do this, type the command netsh winsock reset at the Command Prompt and press Enter.
After a successful run, you will need to restart your PC for the changes to take effect.
4. Use the Netsh command
The netsh command allows you to configure various network settings that directly affect the performance of your connection. If the system is taking longer than usual to connect to the websites, you can make several changes to the network to speed up the connection.
Here are some netsh commands that you can use to speed up your connection. An “Ok” message. will confirm that they have been executed. Please note that some of these commands may not work on your PC due to limited compatibility.
netsh int tcp set global chimney = enabled netsh int tcp set global autotuninglevel = normal netsh int tcp set supplemental (the alternative command for Windows 7 at the end) netsh int tcp set global dca = enabled netsh int tcp set global netdma = enabled netsh int tcp set global ecncapability = enabled netsh int tcp set global congestionprovider = ctcp (for Windows 7)
Run all these commands and then restart your PC for the settings to take effect. In most cases, they should speed up connectivity and also the overall speed of the internet.
If you face any problem, replace the enabled part of these commands with disabled and hit Enter to disable it.
For example, the command netsh int tcp set global chimney = disabled will disable the Chimney unload feature.
5. Accelerate Streaming
If your internet speed is good, but video websites like YouTube play content slowly, then there is a possibility that the ISP is suffocating your connection. It is common for ISPs to limit streaming to save bandwidth. Fortunately, with a simple command you can solve this problem.
In the Command Prompt, enter the command mentioned below and press Enter:
netsh advfirewall firewall add rule name = "StopThrottling" dir = in action = block remoteip = 18.104.22.168 / 24,22.214.171.124 / 16 enable = yes
This simply adds a rule to your firewall that will prevent the ISP from throttling your connection during video transmissions.
How to speed up the internet
If you are facing any internet problem, you should first try all the above commands. In most cases, an unexpected slowdown in internet speed or an error in accessing the web page is usually caused by problems in these areas. Be sure to tell us if you have been able to solve your slow internet connection with these tips.