If you’re a Mac user and have High Sierra installed, you can use the network diagnostics tool to check for problems with your computer. This tool is available in the System Preferences app and can be used to diagnose problems with your computer, including system crashes, system errors, and network issues. To use the network diagnostics tool, open System Preferences and click on the Network icon. In the Network Diagnostics window, you’ll see a list of devices on your network. You can click on any of these devices to start the diagnostic process. The diagnostic process will take some time, so be patient. If you experience any problems during the diagnostic process, please email us at support@apple.com and we’ll help you out.
