There’s a reason “have you tried turning it off and on again” is the first suggestion when it comes to computer troubleshooting. Restarting your computer and router can often resolve network issues. Network settings can glitch occasionally, and a simple reboot can clear the issue and get you back online. We recommend powering down your Windows computer completely first, then rebooting your Wi-Fi router. If your router has a companion app, you can use that to restart things. The easiest way to do a full reset, if you can access your router easily, would be to unplug the power to the router completely, wait for 20 seconds or so for any residual power to drain, then plug it back into the socket.
Once the router has booted and is broadcasting its Wi-Fi signal again, turn your computer back on and see if the problem has been resolved. If it was caused by a temporary issue, your laptop or desktop should be able to access the internet again without an error about proxy server settings.
Check the Network Settings
Proxy settings or IP and DNS issues can cause this error. Open Settings, navigate to Network & internet, and click on Proxy from the list in the right-hand pane. If the toggle next to Automatically detect settings is already enabled, leave it on. If not, click the toggle to turn it on. Use setup script should be set to Off, unless you know your network uses one. And Use a proxy server should also be set to Off for most networks.
If you’re still not getting online, try toggling Automatically detect settings to off, then try reconnecting. For most home networks, setting the options in the network proxy menu to these values will fix the issue. If you know you need a proxy for some networks, like those in a business or school environment, you’ll want to check in with the IT administrators to get the correct settings for those networks. They’ll also be able to help with issues related to not being able to connect if the settings are correct.
Try the Network and Internet Troubleshooter
Open the Start menu and search for Troubleshooting, then select the app that shows up. Select Other troubleshooters from the app. Select the Network and Internet troubleshooter and click on Run. In Windows 10, this might be named Network Adapter. You can also open the troubleshooter by right-clicking on the internet icon on the taskbar, then selecting Diagnose network problems. The troubleshooter will check your network and give you recommendations for fixing it if it finds any issues.
Check for Malware
Another reason for your computer to suddenly start saying it can’t find proxy settings is if it is infected by malware. If you get the Windows could not detect this network’s proxy settings notification often, or on every reboot, it’s time to scan your computer for malware and viruses. Microsoft Defender is part of every Windows 11 install, free, and should clear most infections. For another line of defense, try scanning with Malwarebytes, which detects a wider range of potentially unwanted programs. If either of the scans discovers something, follow the instructions given to cleanse the infection and see if your network connects normally again.
Reset Your Network Settings
Open Settings and navigate to the Network & internet tab. Select Advanced network settings at the bottom of the list. In Windows 10, select the Status tab, then select Network reset. Select Network reset.
