Can't connect to 5ghz wifi channel in Bootcamp Win10 new MacBook Pro 15" w/touch

Here's what I did to get my MacBook to connect to an 802.11n 5ghz network:

Open device manager and right click -> properties on the Broadcom network adapter

Select the "Advanced" tab

Select the "Bandwidth Capability" item in the list

change the value to "11a/b/g:20mhz"

Close the window and you should be able to connect to the network just fine. Now, if you're experiencing high latency or disconnections after that, try disabling "Microsoft RRAS Root Enumerator" under Software Devices and see if that helps.

johnsimons wrote:

What does the update to iCloud has to do with the wifi drivers ?

The release notes do not mention any fixes to the driver

It is related to Re: BootCamp fails to start after upgrade to MacOS Sierra 10.12.1 . Some updates are pushed out regionally. You may or may not see the same update at the same time as others do. It is related to an update, which may or may not contain iCloud.

johnsimons wrote:

So ended up contacting Apple support, and the answer was to contact MS support 😟

This may be much faster than calling Apple Tech Support. Please create a new bug report using your AppleID at https://bugreport.apple.com/ . This gets routed much more quickly to the right group than voice calls.

Create a Windows System Restore point before you do either of the following.

If you run Apple Software Update on the Windows side of 2016 MBP, do you see a WLAN Update?

If not, from the OS X side, download the latest BC6 software for your 2016 MBP using BC Assistant -> Action -> Download... to a USB flash drive and then try to run setup.exe from the Bootcamp folder.

johnsimons wrote:

My bootcamp partition works fine, is just the wifi that is broken

The thread is related to a different set of issues, but the specific post I linked to is related specifically to WiFi on 5GHz. If you do not see a WLAN update, it may not be available wherever you are located. I suggest trying Apple Software Update later.

johnsimons wrote:

Well this is a showstopper bug, we really need a fix now.

Yes, many users need it. I suggest calling Apple Tech Support and asking them specifically about Bootcamp and any updates released in the last 48 hours. If you get into the general queue, it will take you a while.

As an alternative, used a wired connection, if possible.

The first tier support folks on either side just point to the other side, like today's politicians. 😉 If you call them, ask to speak to a supervisor and see if the call gets routed properly to the Bootcamp support folks.

Matthew110607 wrote:

iCloud update is not going to fix network bootcamp drivers, come on man.

It is not an iCloud update, it is a WLAN update. I suggest checking Apple Software Update for any available updates. Please also remember that wireless networks come in all variants.

If a Windows PC connects to the same 5G network as OS X on Mac can, but BC/Windows cannot, it should be mentioned to the Apple Support folks.

Running Wireshark and capturing WLAN packets can tell you what the difference is between the two clients.

Matthew110607 wrote:

You have to be a developer to use that feature.

Which takes 30 seconds or less using your Apple ID.

Matthew110607 wrote:

Between that suggestion and the suggestion of updating iCloud, I'm thinking you should probably just stop trying to "help"

Yes, I should. There is no point in banging my head against the wall. Please post back when you find a solution. 😁

As a work around for now, the only way I can use my bootcamp win10 environment is to use Parallels to boot up bootcamp. This way I'm connecting to wifi via the Mac and just pass thru to win10.

Hopefully Apple takes note of this thread and fix the driver. It's the Apple Wifi driver that has the problem.

long story short I noticed that devices related to the RRAS Enumerator were showing up the same time as my network issues.

I should also add a small disclaimer that the above fix will most likely break VPN functionality/apps.

This did not help me. I also cannot connect to 2G wifi. Before I started changing things (foll We by this thread) I had a connection, though it was intermittent. Now there's nothing. Can you describe why those two things are involved? I'd like to understand their use.

Also this post seems to be related to Wifi keeps dropping in Windows 10 (BootCamp) on new tbMBP 15"

It seems my 2.4Ghz connection is also quite unstable 😟