Unofficial Mac OS X driver for Broadcom's BCM5722 NetXtreme and NetLink family of gigabit Ethernet controllers. It is implemented based on the BCM5722 Programmer's Guide provided in Broadcom's open source developer resource. Bcm5782 netxtreme gigabit ethernet driver free download - Network:Broadcom NetXtreme Gigabit Ethernet Driver Version A00, Broadcom NetXtreme Gigabit Ethernet, Broadcom NetXtreme Gigabit Ethernet.

I am having troubles with finding driver for my Apple Thunderbolt to Gigabit Ethernet Adapter.

I checked the version and I have a BCM5701 chip. These Broadcom drivers don't support my adapter.

I want to get it working under my second PC Lenovo X1 Carbon with Windows 10 64-bit

Where can I find drivers to this ?

1 Answer

This is for Windows 7, but should work for Windows 10

A quick search on the Apple Support site, I was able to find instructions on downloading the correct driver. I have condensed them here for quick reference:

1. Download the Netxtreme Mobile/Desktop Driver. It will say that it's not supported, but the .inf file does include the requisite driver entries

2. Unzip the drivers to a temporary folder on your hard drive (preferably your Desktop so it's easy to find)

3. Connect the adaptor to the thunderbolt port
4. Reboot Windows

Windows should automatically detect the adaptor now and install it. You may need to point the installer at the location where you unzipped the drivers.

If that doesn't work, you will need to do this through Device Manager

1. Go to Start > Control Panel > Hardware & Sound and open Device Manager
2. Click the name of your computer at the top of the device tree
3. Click Action at the top of the window and choose Add Legacy Hardware
4. Click Next
5. Select 'Install hardware that I manually select...'
6. Choose Network Adaptors
7. Choose 'Have Disk'
8. Browse to the location of the drivers you unzipped earlier.
9. Click the .inf file
10. Select Broadcom NetXtreme Gigabit Ethernet from the list of drivers available
11. OK and install

You may need to reboot again with the adaptor plugged into the Thunderbolt port to finish the job

Note: Again, these instructions and driver downloads are for Windows 7. Thought they should work with Windows 10, it is not guaranteed.

If having both OS X and Windows 10 support is important, consider getting a USB 3.0 to Gigabit Ethernet Adapter. I have personnaly used this exact adapter on an iMac, a MacBook Pro, a Mac Mini (Dual Boot w/ Win 7) and a Surface Pro 3.

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After you upgrade your computer to Windows 10, if your Broadcom Network / Ethernet Drivers are not working, you can fix the problem by updating the drivers. It is possible that your Network / Ethernet driver is not compatible with the newer version of Windows.

How to Update Device Drivers

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There are two ways to update drivers.

Option 1 (Recommended): Update drivers automatically - Novice computer users can update drivers using trusted software in just a few mouse clicks. Automatic driver updates are fast, efficient and elimate all the guesswork. Your old drivers can even be backed up and restored in case any problems occur.

OR

Option 2: Update drivers manually - Find the correct driver for your Network / Ethernet and operating system, then install it by following the step by step instructions below. You’ll need some computer skills to use this method.

Option 1: Update drivers automatically

The Driver Update Utility for Broadcom devices is intelligent software which automatically recognizes your computer’s operating system and Network / Ethernet model and finds the most up-to-date drivers for it. There is no risk of installing the wrong driver. The Driver Update Utility downloads and installs your drivers quickly and easily.

You can scan for driver updates automatically with the FREE version of the Driver Update Utility for Broadcom, and complete all necessary driver updates using the premium version.

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1. Download the Driver Update Utility for Broadcom.

2. Double-click on the program to run it. It will then scan your computer and identify any problem drivers. You will see a results page similar to the one below:
   

3. Click the Update Driver button next to your driver. The correct version will be downloaded and installed automatically. Or, you can click the Update Drivers button at the bottom to automatically download and install the correct version of all the drivers that are missing or out-of-date on your system.

Option 2: Update drivers manually

To find the latest driver, including Windows 10 drivers, choose from our list of most popular Broadcom Network / Ethernet downloads or search our driver archive for the driver that fits your specific Network / Ethernet model and your PC’s operating system.

If you cannot find the right driver for your device, you can request the driver. We will find it for you. Or, try the automatic option instead.

Tech Tip: If you are having trouble finding the right driver update, use the Broadcom Network / Ethernet Driver Update Utility. It is software which finds, downloads and istalls the correct driver for you - automatically.

After downloading your driver update, you will need to install it. Driver updates come in a variety of file formats with different file extensions. For example, you may have downloaded an EXE, INF, ZIP, or SYS file. Each file type has a slighty different installation procedure to follow. Visit our Driver Support Page to watch helpful step-by-step videos on how to install drivers based on their file extension.

How to Install Drivers

After you have found the right driver, follow these simple instructions to install it.

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1. Power off your device.
2. Disconnect the device from your computer.
3. Reconnect the device and power it on.
4. Double click the driver download to extract it.
5. If a language option is given, select your language.
6. Follow the directions on the installation program screen.
7. Reboot your computer.