Try this simple fix which many users found helpful: In some cases, sleep mode settings are why your Wi-Fi drops off on Mac and wouldn’t turn on again. Wi-Fi won't turn on after sleep mode on Mac If the issue persists, you may consider clean installing macOS Catalina. The path above proved to be a good remedy when the Wi-Fi connection drops off after upgrading to the latest macOS. Turn Wi-Fi on and select your Wi-Fi network again. Now you will have to revisit Wi-Fi preferences (Click Open Network Preferences under Wi-Fi icon). Move these files to a new folder on your Desktop. Select the files listed below (as shown in the screenshot) Library/Preferences/SystemConfiguration/Ĥ.
But before you begin, we seriously recommend backing your Mac up using Time Machine. This step will reconfigure your existing Wi-Fi settings and launch your network experience from scratch. Option +click the Wi-Fi icon in the top right corner.To troubleshoot Wi-Fi problems on Mac, it’s good to start with native tools that came with your OS.
