How to Fix Wifi problem on surface pro 4 on macOS
Network issues normally come from the wrong kexts, stale root patches, USB mapping, or unsupported wireless hardware.
Step-by-Step Fix:
- Back up first: Make a Time Machine backup or clone before changing OpenCore, EFI, root patches, or macOS versions.
- Confirm the chipset: Identify the exact Wi-Fi/Bluetooth or Ethernet controller, not only the laptop model.
- Use matched kexts: Pair Intel Wi-Fi with AirportItlwm or itlwm for the exact macOS version; pair Bluetooth with IntelBluetoothFirmware and BlueToolFixup when required.
- Rebuild and reset: Update OpenCore, clean NVRAM, rebuild the config snapshot and reboot.
- Test a simple network: Try WPA2 personal hotspot, Ethernet or USB tethering to separate router security problems from driver problems.
Final check: Change one thing at a time, reboot, and keep a copy of the last working EFI before the next test.
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