In the event of a serious problem with your Mac, you may need to reinstall your Mac operating system. There's a simple way to do this using your Mac Recovery partition or via Mac Internet Recovery.
[Issue Solved] Mac Recovery Mode Not Working Jun 22, 2020 FASTEST FIX! Mac Connected to WiFi But No Internet Oct 31, 2016 Internet Recovery Mac Not Working - [Official] Recoverit Troubleshoot of "Mac Internet Recovery Not Working" When Internet Recovery Mac isn't an option for you, the best next thing to troubleshoot the problem is through a bootable installer. The simplest way to do so is by using the Terminal app. Plug the USB flash drive to your computer. Go to Disk Utility. Select the Volume in the sidebar. Click How To Fix Internet Not Working Due To Self-Assigned IP
Fix WiFi Connection Issues in MacBook and MacBook Pro
How to fix Mac network and internet problems | TechRadar Jun 27, 2011 How to Reinstall macOS If Command R Is Not Working on MacBook
Dec 10, 2009
Hellooooo, So on my MacBook I have connected to the internet in a different location, using AirPort, but when I click on Safari it tells me that I'm not connected to the internet. I'm not sure what exactly I need to change, but if someone knows what is wrong, please help me!