"Can't Connect to this Network" on Windows 10 Partition

I have had Windows 10 installed on my Mac Pro (2013) for several months now and have had no issue. Recently, it has been unable to connect to my home Wi-Fi. It connects just fine to my iPhone's mobile hotspot, though. I don't recall updating or downloading anything around the time it happened. All it says when I try to connect is "Can't connect to this network." The troubleshooter was unhelpful. The problem is not with the Wi-Fi itself - everything else connects fine, and nothing has changed with it since Windows 10 stopped being able to connect. Even running Sierra on the same computer connects to the Wi-Fi just fine, so it can't be hardware related either. It's only my Windows 10 partition that refuses to connect to my home Wi-Fi network. I've tried several solutions I've found from google searches, but the best it would do is allow me to connect for only a few minutes, and the connection would be incredibly slow, and progressively getting worse until I can't load anything at all. Nothing I've tried has been able to solve the Wi-Fi connectivity problem. Any insight into my issue would be greatly appreciated. Thanks.

Mac Pro, macOS Sierra (10.12.2), 12GB RAM, Xeon quad core, 250GB SSD

Posted on Oct 5, 2017 1:46 AM

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42 replies

Oct 26, 2017 2:05 PM in response to Loner T

Yes, Windows 10 on my Mac used to connect just fine. It worked for several months until just recently, when I posted this question.

WLANService is set to automatic.

Microsoft Windows [Version 10.0.14393] (c) 2016 Microsoft Corporation. All rights reserved. C:\WINDOWS\system32>netsh wlan dump # ---------------------------------------- # Wireless LAN configuration # ---------------------------------------- pushd wlan # Allow filter list # ---------------------------------------- # Block filter list # ---------------------------------------- popd # End of Wireless LAN Configuration C:\WINDOWS\system32>


Also, UPDATE:

After checking WLANService, I decided to try connecting to the internet again, even though nothing had changed since the last time I tried. Surprisingly, it was able to connect. I tried loading some webpages, but after a few minutes it started loading very slowly. Then it failed to load a page, and the Wi-Fi disconnected after a minute. I disconnected my phone from Wi-Fi (for an unrelated reason) and after a minute my computer reconnected. I don't know if these are related, though I don't think so, as I've since reconnected my phone and have had no issues. The computer disconnected once more while I was downloading some of the programs I had lost when I reset Windows. The computer went to sleep while downloading, and I saw it was disconnected when I signed in, but it reconnected after a moment. I tried the downloads again with no issue. I also noticed this appeared after I connected:

User uploaded file

Though I'm not sure if I should download it or not. I'm concerned about that Wi-Fi update... Could installing it cause any more issues?

Oct 7, 2017 2:29 PM in response to Loner T

MacOS indicates my Broadcom driver version as Broadcom BCM43xx 1.0 (7.21.171.130.1a1).

My SSID is 2.4G.

In the properties page for the Broadcom 802.11ac Network Adapter on Windows 10:

20/40 Coexistance is Auto

40MHz Intolerant is Disabled

Band Preference is None

Bandwidth Capability is 11a:20/40;11bg:20MHz

Disable Bands is None

IBSS Mode is 802.11a/b Only

WZC IBSS Channel Number is 11(20MHz)


I'm not sure which (if any) of this information is relevant, so I've included it all.

Oct 7, 2017 3:58 PM in response to stephenrwn

Do you have more than one Mac? If yes, then switch the non-working Mac to Windows, and the second Mac to Wireless Diagnostics and click on Windows -> Sniffer, and choose the same channel as your SSID channel and correct bandwidth (20MHz), and start a capture and then try to connect the Windows to the SSID. This will allow you to capture the WLAN packets between the Mac-running-Windows and the AP. We can then analyze the capture using Wireshark.

Oct 19, 2017 2:31 PM in response to Loner T

Okay. I have downloaded Windows Message Analyzer on Windows 10 on my Mac. I'm not sure if it requires a separate computer or not, but I can install it on my laptop if need be. After opening the program, I've found it to be a little more complicated than expected. Might you be able to point me towards a guide or something explaining what I need to do with this?

Oct 19, 2017 11:29 PM in response to Loner T

Okay. I've done that, and reset Windows, but it still doesn't work. I checked the driver version. It's 7.35.118.40 dated 7/24/2015. I don't recall what it was before. I connected to the internet via my iPhone's hotspot to check for driver updates, but it said it's up to date. Is 7.35.118.40 more recent than 7.35.118.73? That seems odd. The button to roll back the driver is grayed out and unclickable, but it was like that before resetting anyways. Sadly, resetting Windows doesn't seem to have solved anything.

Oct 22, 2017 11:52 PM in response to Loner T

Update: Just tried uninstalling and reinstalling Bootcamp drivers. This, unfortunately, has not solved the problem either. However, I did notice something strange. I tried using the Bootcamp icon on Windows to restart in macOS (Which I have never done, I've always just restarted the computer and held down the alt key to switch between partitions) but it said 'cannot locate macOS boot volume.' Not that this is an issue I'm at all concerned about, as I can switch partitions just fine using the old method. I'm just wondering though, might this have anything to do with my problem? Maybe there's an underlying issue in Bootcamp itself responsible for all this?

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"Can't Connect to this Network" on Windows 10 Partition

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