Issue Description
Mac detects Wi-Fi networks but fails to join them.
Common Causes
- Incorrect password
- Corrupt network preferences
- Router compatibility issues
Step-by-Step Solution
Step 1: Forget and Rejoin Network
- System Settings → Wi-Fi
- Forget network
- Rejoin and enter password
Step 2: Renew DHCP Lease
- Wi-Fi → Details → TCP/IP → Renew DHCP Lease
Step 3: Reset Network Settings
- Remove Wi-Fi service
- Restart Mac
- Re-add Wi-Fi
Step 4: Restart Router
- Confirm connection works on other devices
Explore Further
- Change Wi-Fi security protocol
Prevention & Best Practices
Avoid saved networks with outdated passwords.