Windows 11 Internet Troubleshooting: A Logical, Step-by-Step Guide

When the internet stops working on Windows 11, changing settings at random can make the problem harder to identify. Follow a clear sequence: identify what is failing, check simple causes, make one change, and test again.

This guide covers missing connections, “Connected, no internet” messages, slow speeds, and frequent disconnections. Stop troubleshooting when normal service returns.

Quick troubleshooting flowchart

Change one thing at a time, then repeat the original test.

1. Identify what is affected

1. Open two or three unrelated websites.
2. Try a different browser on the same computer.
3. Test another device on the same home network. On a phone, temporarily turn off mobile data so you are testing Wi-Fi.

If only one website fails, investigate that website or browser. If one browser fails while another works, check its extensions and settings. If only the Windows computer fails, focus on that computer. If several devices fail, investigate the router, modem, or provider. These are clues, not a final diagnosis.

2. Check the basic connection

Open Settings > Network & internet. For Wi-Fi, confirm Wi-Fi is on, Airplane mode is off, and you selected the intended network. Move closer to the router and test again. For Ethernet, reconnect the cable at both ends and try another router LAN port or a known-working cable.

Open the Windows 11 Get Help app and search for network and internet troubleshooting. Follow the diagnostic prompts. See Microsoft’s connection guidance.

3. Restart the affected equipment

If only your computer is affected, save your work and restart Windows. If several devices are affected, restart the modem and router following their manufacturer’s instructions. Allow the modem to reconnect before expecting internet access through the router.

This temporarily disconnects everyone using that equipment. Avoid the recessed Reset button, which may erase the router’s configuration. Repeat the checks from Step 1.

4. Measure speed when websites load

If the connection works but feels slow, run a test at FreeInternetTest.com. Pause downloads, backups, and streaming first. Test near the router, repeat two or three times, and compare with Ethernet if available.

• Ethernet is good, Wi-Fi is slow: investigate signal, interference, and router placement.
• Several devices are slow, including Ethernet: investigate shared traffic, the router, or your provider.
• Only one computer is slow: check background activity, VPN software, and its network adapter.
• Speed seems reasonable but calls lag: investigate latency, congestion, and instability.

A speed test measures performance to a test server at that moment. It does not identify every fault. Skip speed testing if no websites load.

5. Isolate Wi-Fi from internet access

Compare Wi-Fi with an Ethernet connection to the router. If Ethernet works, focus on wireless signal and configuration. Try another Wi-Fi band if separate network names are available.

A trusted phone hotspot can provide another comparison, subject to your mobile data allowance. If the computer works there, investigate the home network more closely.

If you suspect a saved Wi-Fi profile problem, first make sure you know the password. Go to Settings > Network & internet > Wi-Fi > Manage known networks, select the network, choose Forget, and reconnect. Consult IT before removing a managed work or school connection.

6. Check the browser, VPN, and proxy

If another browser works, try a private window in the affected browser and disable extensions one at a time. Record which change affects the result.

Briefly disconnect a personal VPN and retest, then reconnect it. Review Settings > Network & internet > Proxy if an unexpected proxy may be configured. Record existing settings before changing them. Ask IT about required workplace configurations. Keep security protections enabled.

7. Inspect the IP address and gateway

Open Command Prompt and run:

ipconfig

Find the active Wi-Fi or Ethernet adapter. Check its IPv4 Address and Default Gateway. An address beginning with 169.254 commonly means Windows did not obtain an address from DHCP. A missing gateway can explain why destinations outside the local network are unreachable.

For a home connection that obtains its address automatically, open Command Prompt as administrator and run:

ipconfig /release
ipconfig /renew

These commands interrupt the connection and request a fresh DHCP configuration. They are not a repair for a deliberately configured static address. See Microsoft’s ipconfig documentation.

8. Check DNS lookups

DNS translates website names into network addresses. Run:

nslookup example.com

A returned address means that lookup succeeded. A timeout or error suggests investigating the DNS service or connectivity to it; it does not prove DNS is the only problem. See Microsoft’s nslookup documentation.

To clear cached DNS entries, run:

ipconfig /flushdns

Retry the website. Clearing stale entries may help, but it cannot restore an unavailable internet connection.

9. Review the adapter driver

Open Device Manager > Network adapters, find your adapter, and review its Properties and device status. Obtain compatible drivers from the computer or adapter manufacturer. If the issue began after a driver update, check whether Roll Back Driver is available.

Before uninstalling a driver, download a compatible replacement and keep it available locally, using another device if necessary.

10. Use Network reset as a last step

Go to Settings > Network & internet > Advanced network settings > Network reset.

This reinstalls network adapters and restores their settings to defaults. Save custom connection details first. You may need to reconnect to Wi-Fi and set up VPN or virtual networking software again. Consult IT on managed computers. See Microsoft’s network reset guidance.

11. Escalate with evidence

Contact your provider if several devices remain offline or consistently slow after equipment checks. Contact IT or the computer manufacturer if only one computer remains affected.

Provide the exact error, when it started, whether other devices work, Ethernet and hotspot comparison results, recent changes, and speed-test results with the time and connection type.

Once access returns, repeat the original website checks and test your internet speed under similar conditions to confirm improvement.