Fix WiFi Not Connecting on MacBook Air After Update
## Direct Answer
If your MacBook Air’s WiFi is not connecting after an update, try restarting your MacBook and router, then forget the WiFi network and reconnect. If that doesn’t work, reset the System Management Controller (SMC) and Network settings.
## Step-by-Step Guide
1. **Restart your MacBook and router**: Shut down your MacBook, unplug your router, wait for 30 seconds, and plug it back in. Turn on your MacBook and try connecting to WiFi again.
2. **Forget the WiFi network**: Go to System Preferences > Network > Advanced > WiFi, select the network, and click the minus (-) button. Then, click the plus (+) button to add it back and enter the password.
3. **Reset the SMC**: Shut down your MacBook, locate the following keys: Power button, Command (⌘) + Option (⌥) + Shift (⇧) + Power. Press and hold them for 10 seconds, then release. Press the Power button to turn on your MacBook.
4. **Reset Network settings**: Go to System Preferences > Network > Advanced > TCP/IP, click the “Renew DHCP Lease” button, and then click “OK”.
## FAQ
* **Q: Why did my WiFi stop working after the update?**
A: The update might have changed your network settings or caused a conflict with your router.
* **Q: What if restarting and forgetting the network doesn’t work?**
A: Try resetting the SMC and Network settings as described in the step-by-step guide.
* **Q: Will resetting the SMC and Network settings delete my data?**
A: No, resetting the SMC and Network settings will not delete your data, but it will reset your network preferences to their default settings.
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