Restarting your computer and router is the first step to take if you’re receiving the error « Windows could not determine the proxy settings for this network ». This will close all open applications and reset the proxy settings to their default settings which should solve the issue for the majority of users.
If this doesn’t work, you can also try disabling any antivirus software or firewall VPN software that might be interfering with your Internet connection. You can turn off each application through the settings and removing it one at atime. After you have disabled all of these apps, try reconnecting to your Internet and see if it is still happening.
If you’re unable to solve the issue by using one of these options it is possible to consider a full system restore in Windows. This will restore your default network settings and remove any changes that might have caused the issue. You can do this by going to the Control Panel and then clicking on « Internet Options. » Once you’re there check the boxes marked Automatically detect settings and use the proxy server on your LAN. This will only affect the current user account. If you’re using a shared computer, you may need to repeat this process for other users. You can also deactivate proxy settings through the Registry Editor, but this is a little more complicated and could create problems in the future.