When Windows says there is no internet connection, the cause can be the local Wi-Fi or Ethernet connection, the router, the ISP, DNS, a Windows network setting, or the remote website itself. A good troubleshooting sequence starts by finding out whether the problem affects one device, one network, or only one website.
Start with the scope of the problem
Try another website and, if possible, another device on the same network. If the phone and another computer also cannot reach the internet, the problem is likely beyond one Windows application. If only one Windows PC is affected, continue with local checks.
1. Check the Wi-Fi or Ethernet connection
For Wi-Fi, confirm that the PC is connected to the expected network and that the signal is usable. For Ethernet, check both ends of the cable and the correct router port. Microsoft recommends these physical checks as part of its current Ethernet troubleshooting guidance. citeturn306634search9
2. Check Windows Network settings
Open Settings → Network & internet and inspect the active connection. Look for an obvious disconnected, disabled or airplane-mode state before changing advanced settings.
3. Run Windows network troubleshooting
Windows 11 provides automated diagnostics through the Get Help app for several network conditions. Microsoft's current Ethernet guidance directs Windows 11 users to the automated Network and Internet troubleshooter. citeturn306634search9
4. Restart the router and wait for it to reconnect
If every device is offline, restart the router using its normal power procedure and give it time to establish the connection again. Avoid repeatedly unplugging it in quick succession. If other devices remain offline after the router restarts, contact the ISP or network administrator rather than changing Windows settings repeatedly.
5. Check whether only one website fails
If most websites work but one site does not, the problem may be with that site, its DNS record, your browser session or a browser-specific block. Do not reset the entire Windows network configuration for a single-site problem until you test another browser or network.
6. Test another browser
If one browser cannot reach sites while another works, focus on the browser rather than Windows networking. Check extensions, proxy settings and cached site data according to the browser's current support instructions.
7. Be cautious with DNS and proxy changes
Changing DNS servers or proxy settings can be useful in specific circumstances, but it should not be the first step when you have not established a DNS/proxy problem. If the computer belongs to a workplace or school, proxy settings may be controlled by the organization.
8. Restart the network adapter only when the connection is clearly local
Disabling and re-enabling a network adapter can clear a temporary local state. Use Windows' normal Network settings rather than uninstalling drivers as a first response. If the adapter repeatedly disappears, check the device manufacturer's and Windows' current driver guidance.
9. Avoid a network reset unless simpler checks fail
A Windows network reset is a more disruptive action that can remove/reinstall network adapters and restore network settings. It can also require you to reconnect to networks or reconfigure software that depends on network settings. Treat it as a later recovery option, not a routine first step.
10. Know when the problem is outside Windows
If multiple devices cannot connect, the router shows an abnormal status, or your ISP reports an outage, Windows troubleshooting may not be the right place to keep searching. Document the symptoms and contact the network provider or administrator.
Quick decision tree
- All devices offline: check router, ISP or network.
- Only one Windows PC offline: check adapter, settings and Windows diagnostics.
- Only one browser affected: troubleshoot that browser.
- Only one website affected: test another browser/network before changing Windows networking.
- Corporate/school PC: involve the network administrator before altering managed settings.
Quick checklist
- □ I tested more than one website.
- □ I checked another device when possible.
- □ I checked Wi-Fi/Ethernet basics.
- □ I ran Windows network diagnostics.
- □ I avoided changing DNS/proxy settings without a reason.
- □ I avoided a network reset until simpler checks failed.
Quick answer
When Windows has no internet connection, first determine whether the issue affects one PC, the whole network, one browser, or one website. Check Wi-Fi/Ethernet, Windows network status, the router and Windows diagnostics before making advanced DNS, proxy or network-reset changes. citeturn306634search9