How To Fix Internet Slow on One Computer But Fast on Another?

How to fix the internet slow on one computer but fast on another?

Since the pandemic began, family members have been fighting for internet capacity more than ever. Employees require the Internet to complete their tasks and attend meetings. Students require it to attend classes, and various devices, including computers, laptops, phones, smart TVs, gaming consoles, and so on, are linked to a single router. The problem becomes even more frustrating when you discover that your computer’s internet speed is significantly slower than the other devices. Still, it’s a common problem, and various factors can play a role. Continue reading to learn how to fix the internet slow on one computer but fast on another.

How to fix internet slow on one computer but fast on another

How to be sure that your Internet is slow on one computer but fast on another?

If you want to be foolproof that the internet speed is faster on one device and slower on another, you can use online tools to test the speed of the Internet. When you open one of the websites like Fast.com, SpeedTest.net, or Speed.io on your device, it will first display your internet service’s name and location. Then they’ll start testing the internet download and upload speeds, as well as the PING, or response time between the PC and the Internet. After a few seconds, the results will be displayed.

Probable causes why Internet slow on one computer but fast on another

If noteworthy disparities exist between the two readings from two devices, something is wrong with your device’s internet speed. So, before we get into the fixes, let’s look at what might be causing this. The following are the causes of slow Internet on one computer and fast Internet on another:

Malware Infection

If a virus, malware, spyware, or ransomware attacks your computer, your internet speed may suffer. Without your permission, those can send thousands of emails, drip information, and completely clog your system.

Corrupt TCP

When your TCP/IP stack becomes corrupt, your internet speed will suffer. However, it occurs infrequently but causes major problems in your device.

Problematic Applications

Many users are obsessed with downloading and installing every app or software they come across. Sometimes, the apps unnecessarily tax the CPU while consuming disc and memory space. This has an overall effect and eventually slows down your internet speed.

Outdated Network Drivers

Using outdated network drivers on your computer can significantly cause speed disparities between your devices. So, make sure to keep them up to date.

Windows Update

As an operating system, Windows consumes approximately 20% of your network bandwidth to update Windows files and some system applications. This causes an additional load for mid-bandwidth internet users, but you can disable the feature until you turn it on.

How to fix the internet slow on one computer but fast on another?

Change your computer/router’s location

A weak WiFi signal almost always causes a slow internet connection on one computer. If you use a traditional router or modem provided by your ISP, you must position it so that its signal reaches the entire house. Move the router nearer to your computer, or your computer closer to the router, to shorten the distance that signals must travel to reach you. The more the distance, the greater the risk of slow speeds, connection issues, and dropouts. Keep in mind that objects can cause interference with connections.

Keep the router away from clutter and in a high and open location. Do not store it in a closed cabinet. Furthermore, your WiFi may use the same frequencies as other electronic devices that emit radio-frequency signals, such as cordless phones, microwaves, TVs, and monitors.

They can interfere with or completely block WiFi signals, so remove them from the area between your computer and the router and check to see if the connection improves. The best solution for any of the issues above is to purchase a high-quality WiFi extender capable of increasing signal strength and covering a larger area in the home.

Fix virus-related problems

Viruses, spyware, and insufficient browser add-ons can all have an impact on internet speed, in addition to causing other issues. They can interfere with your browser and monopolize your internet connection, resulting in a slow system and Internet. Spyware is designed to monitor your internet usage, causing delays in your work process. Multiple spyware programs can harm your browsing experience and cause you to lose connection. To get rid of the infestation, run anti-spyware programs.

Viruses typically install computer codes that attempt to spread by sending copies of themselves via email. Because virus infections have no obvious symptoms, you must always run a reliable and capable antivirus program on your device. Finally, some third-party browser add-ons can be inconvenient and slow your internet connection. Disable any browser add-ons you don’t need, especially ad blockers, and see if your internet speed improves.

Here’s how to turn off extensions in various browsers:

  • Chrome: Click the puzzle piece icon in the upper right corner of the window and select Manage Extensions from the menu. Then, disable all unnecessary extensions and delete those you don’t recognize.
  • Firefox: Select Add-ons from the screen’s three-line icon in the upper right corner. Choose the Extensions or Plugins you want to disable or remove.
  • Microsoft Edge: Select Extensions from the three dots in the top right corner. To disable the unnecessary extensions, turn off the switch next to them or select Remove.
  • Safari: Select Safari and then Preferences. Select the Extensions button in the upper right corner of the screen. Uncheck the Enable box next to each extension you no longer require or uninstall it.

Disable troublesome apps

First, you should always be aware of the apps and programs running in the background while you work. Some of them can significantly impact your internet connection, making it appear slow. For your computer to run smoothly, you need a certain amount of computing power, memory space, and disc space.

Running programs that consume much computing power and memory can compete with your web browser and slow down. In the Windows search bar, type “background apps” to open the Settings menu, which contains a list of them. Proceed through the list, disabling any that you do not want to run in the background.

Unlock Task Manager by right-clicking on the Windows symbol and selecting it from the list. You’ll see a list of currently running apps in the Processes tab, and you can see how much of your Internet they’re using under the Network heading. You can find the faulty apps this way.

Furthermore, some apps are designed to prioritize processes such as streaming games or videos over other programs such as web browsing and downloads.

Check the faulty TCP/IP stack

A faulty TCP/IP stack could be the source of your network problems. You can uninstall and reinstall TCP/IP or reset it using the steps below:

Open the utility by typing “Command Prompt” into the Windows search box. In the field, type “netsh int ip reset c:resetlog.txt” and press the Enter key on the keyboard.

The following keys will be overwritten by the command above:



If you don’t want to pinpoint a directory path for the log file, use “netsh int ip reset” instead. Start your computer again.

Undo wrong settings

Some users have reported that changing the WiFi standard to a slower one in the settings speeds up the connection.

Although it may appear strange, it’s worth a shot, and if it doesn’t work, you can undo the changes. Right-click on the Windows logo and select Device Manager from the menu. Locate and double-click Network Adapters in the list.

Select Properties by right-clicking on the name of the internet adapter you use. Go to the Advanced tab and look for the option to select the WiFi speed or standard in the list. Change the 802.11b/g/n value to 802.11b/g.

Because the network adapter is the source of your connectivity problems, it’s worthwhile to try the following methods to see if it’s to blame:

Return to Device Manager, Network Adapters, Properties, and Advanced. Look for Link Speed and Duplex in the list under the Property heading.

Make sure its Value is set to Auto-Negotiation. Then, type “Control Panel” in the Windows search box to open the app. Choose Network and Internet, followed by Network and Sharing Center.

From the left menu bar, select Change adapter settings. Right-click on the name of the current connection and select Disable. Please wait a few seconds before right-clicking on it and selecting Enable.


Suppose none of the previously mentioned software-related solutions improved your internet speed. In that case, your computer might have a hardware problem that is causing the Internet to slow on one computer but fast on another.

To find out if this is the case, boot your computer into Safe Mode and check your internet connection there. If you discover that the issue is hardware-related, have a technician examine your computer. Else you can fix it when you search for How to fix internet slow on one computer but fast on another, it with the help of the guide we have provided above!