You might get by with a hardware solution, described next. If it’s out of warranty, the repair may be expensive as with most Macs released in the last 10 to 15 years, a complete motherboard replacement may be required. If your Mac remains under warranty, keep details of your testing handy and call for a repair. If none of the above solves the problems, it’s time to hit the repair shop. This is a non-destructive installation, but you need a backup in case things go wrong. Reinstall macOS: Make a Time Machine or other complete backup of your Mac, restart into macOS recovery, and.(Apple silicon M-series Macs have no SMC to reset.) Clear the hardware state (Intel Macs): On Intel Macs, you can reset the System Management Controller (SMC).How to fix a missing Wi-Fi entry in macOS” provides the steps. Remove the Wi-Fi network entry and restore it: The column “.(You can find the instructions to create a new user Does Wi-Fi work now? Then there’s something corrupted in the other user’s low-level settings that may require reinstalling macOS.

Try creating a new user in macOS, restarting, and logging into that new user account. Create a new user in macOS: Sometimes the problem is with a user account.See Apple’s steps to start up in safe mode. Start in safe mode: Safe mode fires up a limited number of services in macOS and could reveal a conflict.Restart your Mac: This clears the state in many cases.Try these troubleshooting steps in order: There could be a low-level configuration issue or a hardware problem, and you should eliminate configuration issues first. If hardware is the issue, the Wi-Fi drop-down menu may inaccurately read “Wi-Fi: No hardware installed,” though readers have seen “not configured” and other errors as well.

Apple macbook pro 2011 network card