Bootcamp Windows 10 no WiFi, Retina Mid 2012

working for me now.

Background. I initially tried win10pro upgrade from the downloaded win10 pro ISO. It upgraded but when finished had no networking interfaces. No ethernet, no wifi.. nothing. The devices said they were fine in device manager but nothing in networking stack. Odd. Even when I tethered my iPhone it didn't work. I tried re-running bootcamp setup, no joy.. tried manually assigning drivers, no joy. I don't think I had cisco VPN, although I did have some citrix packages.

[What not to do;]
Next I did a clean win10pro boot camp install (trashing the windows partition and starting again from scratch with win10 pro). This installed and then I ran the boot camp setup and wifi worked. BUT.. I couldn't activate windows. I read the MS rules and apparently you can't use the win8.1 key for win10.. you have to upgrade and then when it's auto-activated you can clean install again if you want.
Bugger. Several bad words about microsoft later..

[what worked]
Then I reloaded clean again with win8.1 pro and activated it. I removed all the apple driver packages (not sure if needed), rebooted, copied the win10pro ISO and then ran setup/upgrade from the win10 pro ISO. After it finished, I ran the boot camp setup and now wifi works. It didn't show activated initially but a few hours later, and now it does. No glitches yet.

I had exactly the same problem and the fix is incredible easy.... just repair the Boot Camp drivers as Loner T mentioned in the very beginning of the article. Run the setup.exe in BootCamp folder, reboot when notified, and everything will be fine. Don't mess with drivers, don't roll back. I did not set Compatibility mode and it still works.

I had this same issue upgrading to Windows 10 from Windows 7 Professional. Mid-2012 15" MBP, NON-Retina. No wireless, though ethernet was working. No adapter showing in Device Manager. Tried manually installing the latest Boot Camp drivers for mid-2012 MBP (BootCamp5.1.5621.zip), no change. Tried running the Boot Camp setup.exe. It ran for a bit, then said that it needed Windows 7 to run. I guess that the fix that some people have described here requires you to be upgrading from Windows 8. I really, really don't want to pay to upgrade to Windows 8.1 just to get my free upgrade to Windows 10...

Rolled back to a WinClone backup. Hoping somebody finds a work-around.

Probably not the ideal answer to your issues but you can try to run the Boot Camp setup.exe through Windows compatibility mode

Additionally it's recommended to test both Boot Camp drivers 5.1.5640 and 5.1.5621.

I did try running it in Windows 7 compatibility mode, but it still complains about not being on Windows 7 after installing the graphics driver. I had thought that the Boot Camp drivers in 5.1.5621 were the latest for the hardware in a mid-2012 MBP, but I will try 5.1.5640. Not much to lose, after all!

Hi Oleg,

I had a similar problem on my MacBook Pro late 2011. After trying different solution, I simply uninstalled the Wifi driver and installed all bootcamp drivers again.

The Wifi on my computers now works perfect in Windows 10.

Hope this helps.

With regards

dagd

OK. I could not run setup.exe for version 5.1.5621 on my mid-2012 MBP. It's not for my hardware. However, I was able to run a lot of the installers for that version individually, which gave me a lot of functionality (brightness & sound buttons, Bluetooth, etc.). Still no wireless, though. Device manager continued to show an unknown Network Controller. Ultimately, I ended up updating drivers for it, told it to search my disk, then chose pick from list. I selected Network Adapters, Broadcom and installed the first of the three 802.11n adapters that showed up. Once that driver was installed, I had my wireless.

I still can't get the Boot Camp control panel to (re)install or run, but I can live with that.

This is from W7 BC installation. Do you see the Broadcom 802.11n (or 802.11ac) network adapter?

Are there any unknown devices in Device Manager?

You can download Boot Camp Support Software 5.1.5621 to a USB2 flash drive and Boot Camp: Install or repair Boot Camp drivers .

What is the driver version?