Many Mac users were baffled over the weekend when their Mac‘s Ethernet ports stopped working. Thankfully, Apple swiftly published a support article about how to fix the problem. The culprit appears to be an update to OS X 10.11 El Capitan’s System Integrity Protection security feature, which accidentally disabled the kernel extension that manages the Ethernet port.
Apple pushed out a second update to the Incompatible Kernel Extension Configuration Data that should automatically fix the problem. But if the first update disabled your Ethernet port and prevented the second update from installing, follow these steps to determine your situation and fix it:
- Hold down the Option key and choose System Information from the Apple menu.
- In System Information’s sidebar, under Software, select Installations.
- If the listings aren’t arranged in alphabetical order, click Software Name to sort them.
- Look for Incompatible Kernel Extension Configuration Data. If the most recent version installed is 3.28.1, you have the troublesome version, and will need to force an update to 3.28.2. If you already have 3.28.2, as in the screenshot below, the kernel extension isn’t the culprit and you’ll have to try another troubleshooting method.
Common questions for RD9700 USB2.0 To Fast Ethernet Adapter driver Q, Where can I download the RD9700 USB2.0 To Fast Ethernet Adapter driver's driver? Uploaded on, downloaded 437 times, receiving a 93/100 rating by 186 users. Update Oct 2015, Updated for 10.11 El Capitan! Cable Matters USB LAN LAN USB USB2.0 to RJ45 100Mbps Macbook Windows Chrome. AppleBCM5701Ethernet driver! This breaks ethernet and you have to use WiFi to get online. I rolled the exclusion list back to the last version in my Time Machine backup to fix it, but this required booting from a recovery partition and was a huge pain in the butt, not to mention the time wasted finding the problem. El Capitan has been tested to support up to 128GB of physical RAM on qualified Mac computers. Drivers Drivers in OS X are provided by I/O Kit, a collection of system frameworks, libraries, tools, and other resources for creating device drivers. I/O Kit is based on an object-oriented programming model implemented in a restricted form of C that. Update Oct 2015: Updated for 10.11 El Capitan! If you bought a cheap aftermarket USB-Ethernet adapter like me and found that it doesn't work on El Capitan or Yosemite, here's what you need to get it going. You can stop tearing you hair out now. It'll all be ok.
If you need to force an update to 3.28.2 and have a Wi-Fi connection, the fix is easy: Open Terminal in
/Applications/Utilities
, type the following command, and press Return:sudo softwareupdate --background
![Ethernet driver el capitan mac Ethernet driver el capitan mac](/uploads/1/1/8/9/118946722/188415405.png)
You may be prompted to enter your administrator password. After that, quit Terminal and restart your Mac to finish applying the fix.
If you can’t connect to Wi-Fi or don’t have a Wi-Fi network, then you unfortunately have a more involved process ahead of you, detailed in the aforementioned Apple support article.
![Driver Driver](/uploads/1/1/8/9/118946722/702110795.jpg)
We’re happy that Apple addressed this issue quickly, but we can’t say that the broken 3.28.1 update gives us warm and fuzzy feelings for the state of Apple’s software quality assurance.
Install OSX El Capitan on a PC (MBR)
Prerequisites
- A real Mac or Hackintosh
- A spare disk drive – at least 8Gb, preferably USB
- An 8Gb or larger USB stick
- The Install OSX El Capitan.app from the App Store
- A disk partition to install in
Install on spare disk drive
Connect your spare drive to your PC. Use the method described here to build the El Capitan install USB stick and install OSX using the GPT partition scheme on your spare disk drive. Check it boots up OK and works OK.
Copy to your MBR partition
Use the Disk Utility to either copy the El Capitan partition to your MBR partition, or create a disk image and restore it to your MBR partition. Install Clover on your new El Capitan partition using the MBR options.
Ethernet Driver El Capitan Mac
Copy the kexts you used to build the USB stick to the new El Capitan partition in EFI>CLOVER>kexts>10.11. I needed FakeSMC.kext, NullCPUPowerManagement.kext and a ethernet driver AppleRTL8169Ethernet.kext. Disconnect the spare disk and reboot to check the El Capitan installation boots OK and works OK. If it worked on your GPT disk then it should be OK on MBR with the same drivers.
The problem with creating a GPT partitioned disk and installing on it is that you end up with a bios boot menu item ‘Mac OSX’ which you can’t delete, even using the Clover EFI shell or the linux utility efibootmgr. I’ve got two flavours of linux and efibootmgr refuses to work on both of them. It may be possible to get around this by installing on a USB drive.
Ethernet Driver El Capitan
I have since found you need to run the Clover EFI shell while doing a UEFI boot to get access to the bios boot menu items.
El Capitan Download
Later releases
Ethernet Driver El Capitan Free
I couldn’t get this to work on Sierra and High Sierra because the installer automagically creates a recovery partition which doesn’t get transferred. So I have converted to UEFI, which works fine using the USB stick method.