How to Fix Slow Internet on Linux

Slow internet on Linux is often caused by DNS cache issues, overloaded background services, outdated network drivers or firmware, or apps using too much bandwidth in the background. In some cases, the connection itself is fine, but high system load makes browsing, downloads, and streaming feel much slower than they should. Misconfigured network settings can also add delay or packet loss.

Common Symptoms

• Web pages take a long time to load
• Downloads start slowly or stall
• Video calls or streaming buffer often
• Internet speed tests show much lower results than expected
• The connection works, but only feels slow on one device

How to Fix It Manually

1. Restart your network connection

   • Click the network icon in the taskbar.
   • Turn Wi-Fi off, wait 10 seconds, then turn it back on.
   • If you use Ethernet, unplug the cable, wait a few seconds, and reconnect it.
   • Test your connection again in a browser.

2. Restart your PC and router

   • Save your work and restart your computer.
   • Unplug your router and modem from power for about 30 seconds.
   • Plug them back in and wait until the connection lights return to normal.
   • This clears temporary network issues that can slow down internet access.

3. Check for background apps using bandwidth

   • Open Task Manager with Ctrl+Shift+Esc.
   • Click More details if needed.
   • Look for apps syncing files, downloading updates, or streaming in the background.
   • Close anything you do not need right now, especially cloud sync tools, launchers, or browsers with many tabs open.

4. Flush the DNS cache

   • Press Windows key, type cmd.
   • Right-click Command Prompt and choose Run as administrator.
   • Type:

     ipconfig /flushdns

   • Press Enter.
   • Then restart your browser and test your internet speed again.

5. Reset the network stack

   • In the same Command Prompt (Admin) window, run these commands one at a time:

     netsh winsock reset
     netsh int ip reset
     ipconfig /release
     ipconfig /renew

   • Restart your PC after running them.
   • This can fix corrupted network settings that cause slow or unstable internet.

6. Disable startup and background load

   • Open Task Manager with Ctrl+Shift+Esc.
   • Go to the Startup tab.
   • Disable apps you do not need launching with Windows.
   • Then go to Settings > Apps > Installed apps and remove software you no longer use, especially VPNs, old security tools, or network utilities that may interfere with traffic.

7. Update your network adapter driver

   • Right-click Start and select Device Manager.
   • Expand Network adapters.
   • Right-click your Wi-Fi or Ethernet adapter and choose Update driver.
   • Select Search automatically for drivers.
   • If the problem started recently, try Properties > Driver > Roll Back Driver instead.

Fix It Automatically with Kudu

If you do not want to track down network cache problems, background load, and startup apps one by one, Kudu can help automate the cleanup. It can identify unnecessary background processes and system clutter that make your connection feel slower, helping your PC run lighter and respond faster online.

Download Kudu Free →