Wi-Fi Connectivity Problems MacOS

Issue

Mac cannot connect to Wi-Fi or experiences frequent disconnections.

Environment

• macOS (all versions)

Symptoms

• Unable to join a Wi-Fi network.
• Wi-Fi disconnects intermittently.
• Slow or unstable internet connection.

Cause

• Corrupted network settings.
• Router or modem issues.
• Outdated macOS or network drivers.

Resolution

Step 1: Toggle Wi-Fi

1. Click the Wi-Fi icon in the menu bar.
2. Select Turn Wi-Fi Off.
3. Wait 10 seconds, then select Turn Wi-Fi On.

Step 2: Restart Devices

1. Restart your Mac:
   • Apple Menu > Restart.
2. Restart your router/modem:
   • Power off for 30 seconds, then turn back on.

Step 3: Forget and Reconnect to Network

1. Go to Apple Menu > System Settings > Wi-Fi.
2. Select your network and click Forget This Network.
3. Reconnect by entering the Wi-Fi password.

Step 4: Reset Network Settings

1. Open Finder.
2. Navigate to:
   ~/Library/Preferences/SystemConfiguration/
3. Locate and delete the file:
   com.apple.network.identification.plist
4. Restart your Mac to apply changes.

Step 5: Additional Checks

• Ensure macOS is updated:
  Apple Menu > System Settings > Software Update.
• Test with another Wi-Fi network to rule out router issues.

Expected Outcome

Wi-Fi should reconnect and remain stable after performing these steps.