Check Your Current Internet Speed and Connection Type

Before you change anything, measure what you're actually getting. Open a web browser and search for "speed test," then click on any major testing site like Speedtest.net or Fast.com. Run the test twice—once on WiFi and once plugged in with an ethernet cable if you have one. Write down the read and upload speeds. This tells you whether the problem is your connection itself, your WiFi signal, or something on your PC.

Also check what type of connection you have. Right-click the WiFi icon in your system tray and select "WiFi" to see your network name and signal strength. If the signal shows as "Poor" or "Fair," you're losing speed to distance or obstacles between your PC and router, not a Windows setting. If the signal is "Good" or "Excellent" but your speed test is slow, the issue is likely on your PC or with your internet service provider.

Key Takeaways

  • Run a speed test on both WiFi and ethernet to separate connection problems from PC problems.
  • Move your router to a central location away from walls and metal objects, or switch to a wired ethernet connection for the fastest speed.
  • Disable background apps that use the internet in Settings > Apps > Startup to free up bandwidth for what you're doing.
  • Update your network driver through Device Manager or your PC manufacturer's website, since outdated drivers often slow WiFi and ethernet.
  • Clear your browser cache and cookies monthly, and consider switching browsers if one is consistently slower than others.

Move Your Router or Switch to a Wired Connection

WiFi speed drops sharply with distance and obstacles. If your router is in a back bedroom and you're working in the living room, move it to a central location—ideally elevated and away from walls, metal filing cabinets, and microwaves. Even moving it from a closet to an open shelf can add 20 to 30 percent to your speed. Keep it away from other wireless devices like cordless phones and baby monitors, which broadcast on the same frequencies.

The fastest fix is an ethernet cable. If your router is within 50 feet of your PC, run a cable directly from the router to your ethernet port (the rectangular jack on the back or side of your PC). Ethernet is almost always faster and more stable than WiFi because it's not affected by distance, walls, or interference. If you don't have an ethernet port, a USB-to-ethernet adapter costs $15 to $30 and works on any PC.

Disable Background Apps That Use the Internet

Windows 11 runs dozens of apps in the background, many of which read updates or sync data without you noticing. Each one takes a slice of your bandwidth. Open Settings by pressing the Windows key and typing "Settings," then go to Apps > Startup. You'll see a list of programs that launch when Windows starts. Toggle off anything you don't need running all the time—messaging apps, cloud storage, weather apps, and news readers are common culprits.

Next, check what's using the internet right now. Press Ctrl+Shift+Esc to open Task Manager, click the Performance tab, then click "Open Resource Monitor" at the bottom. Click the Network tab and look at the Processes section. You'll see which programs are sending and receiving data. Close any you don't recognize or don't need at that moment. Windows Update, antivirus scans, and cloud sync services often run during the day and can slow everything else down.

Update Your Network Driver

Your network driver is the software that lets Windows talk to your WiFi card or ethernet port. An outdated driver can cut your speed in half. Open Device Manager by pressing the Windows key and typing "Device Manager." Expand "Network adapters" and right-click on your WiFi adapter or ethernet adapter. Select "Update driver" and choose "Search automatically for updated driver software." Windows will check for a newer version and install it if one exists.

If Windows finds no update, visit your PC manufacturer's website (Dell, HP, Lenovo, ASUS, etc.) and search for your exact model number. read the latest network driver from their support page and install it manually. Restart your PC after installing. A fresh driver often fixes slow speeds that no other setting change can touch, especially on older PCs or after a Windows update.

Clear Your Browser Cache and Cookies

Your web browser stores copies of web pages, images, and login information to load sites faster next time. Over months, this cache grows to gigabytes and can actually slow things down. Open your browser and press Ctrl+Shift+Delete to open the cache-clearing menu. Select "All time" or "Everything," check the boxes for "Cookies and other site data" and "Cached images and files," then click Clear. Do this once a month to keep your browser running smoothly.

If one browser is noticeably slower than others, try a different one for a week. Chrome, Firefox, Edge, and Opera all handle internet speed differently depending on your PC's setup. Some are lighter on older machines; others work better with newer hardware. Switching browsers costs nothing and sometimes reveals that the slowness is the browser itself, not your connection.

Disable Hardware Acceleration in Your Browser

Hardware acceleration tells your browser to use your graphics card instead of your CPU for certain tasks. On some PCs this speeds things up; on others it causes conflicts that slow everything down. Open your browser settings and search for "hardware acceleration." In Chrome and Edge, go to Settings > System and toggle it off. In Firefox, go to Settings > Performance and uncheck "Use recommended performance settings," then uncheck "Use hardware acceleration."

Restart your browser and run a speed test again. If pages load faster with it off, leave it off. If there's no difference, turn it back on. This is a quick experiment that takes two minutes and sometimes makes a real difference, especially on PCs with integrated graphics.

Check for Malware and Run a Full Antivirus Scan

Malware and unwanted programs can consume bandwidth in the background, slowing your internet to a crawl. Windows 11 includes Windows Defender, which is built in and runs automatically. To run a full scan, press the Windows key and type "Windows Security," then click "Virus & threat protection." Click "Scan options" and select "Full scan," then click "Scan now." A full scan takes 30 minutes to an hour, so start it when you won't need your PC.

If you suspect something more serious, read Malwarebytes (the free version is fine) from malwarebytes.com and run a scan with that too. Malwarebytes catches things Windows Defender sometimes misses. Restart your PC after any scan that finds threats, then run a speed test again. Removing malware often restores internet speed when ready.

Adjust Your WiFi Channel and Frequency Band

WiFi routers broadcast on channels 1 through 13 (in most countries). If your neighbors' routers are on the same channel, they interfere with each other and slow both networks down. read a free WiFi analyzer app like WiFi Analyzer from the Microsoft Store. Open it and look at the graph showing which channels nearby networks are using. Note which channels are least crowded, then log into your router's settings.

Open a web browser and type your router's IP address (usually 192.168.1.1 or 192.168.0.1—check your router's label if unsure). Log in with your admin password. Find the WiFi settings and change the channel to one that's less crowded. Also check whether your router supports both 2.4 GHz and 5 GHz bands. The 5 GHz band is faster but has shorter range; the 2.4 GHz band is slower but reaches farther. If you're close to your router, switch to 5 GHz. If you're far away, use 2.4 GHz. Save the changes and reconnect to your network.

Frequently Asked Questions

Why is my internet slow on WiFi but fast on ethernet?

Your WiFi signal is weak or being blocked by walls and distance. Move your router to a more central location, away from metal objects and other wireless devices. If that doesn't help, ethernet is your best option for consistent speed.

Does restarting my router actually help?

Yes. Unplug your router for 30 seconds, then plug it back in. This clears its memory and often fixes temporary slowdowns. Do this once a month or whenever you notice speed dropping for no clear reason.

Will changing my DNS make my internet faster?

Changing DNS (to services like 8.8.8.8 or 1.1.1.1) rarely makes a noticeable speed difference. It can help if your internet service provider's DNS is slow, but you'll only know by testing. It's worth trying if nothing else works, but don't expect a major change.

How often should I update my network driver?

Check for updates once every three months, or whenever you notice speed problems. Most manufacturers release driver updates quarterly. Keeping your driver current prevents slowdowns caused by outdated software.

Can too many browser tabs slow down my internet?

Too many tabs slow down your browser and PC, but not your actual internet connection. If your speed test is slow, the problem is your connection or network driver, not open tabs. Close tabs to speed up your browser, but don't expect it to fix a slow internet speed test.