Wi-Fi Not Working
Apple MacBook
Severity: ModerateWhat Does This Error Mean?
MacBook Wi-Fi not working is usually fixed by removing corrupted Wi-Fi preference files or resetting NVRAM. Start by toggling Wi-Fi off and back on in System Settings — if that fails, delete the Wi-Fi network and rejoin it.
Affected Models
- MacBook Air (all models)
- MacBook Pro (all models)
Common Causes
- Corrupted Wi-Fi preference files from a failed macOS update
- macOS update resetting network configuration
- IP address conflict on the network
- Wi-Fi hardware requiring an NVRAM reset
- Saved network entry become stale or corrupted