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16 inch 2019 MacBook Pro running into Broadcom WiFi driver issues on 1909

I was able to get Windows installed successfully on a partition, then went through the process of updating any drivers via Bootcamp Installer.

Now, the only issue I'm encountering is inconsistent WiFi speeds in Windows 10 (MacOS on the same machine doesn't have this issue). My speeds range anywhere from .5Mbps to 180Mbps.

I've tried removing the driver and reinstalling via a WindowsSupport USB Drive, I've also tried deleting the device entirely from Device Manager, and then reinstalling the driver. Still no luck.

I'm not sure what other potential solutions there may be.

Driver version: 101.10.152.3

I also double checked that this was the same driver from the BootCamp.xml file in my WindowsSupport directory.

I should also mention that this is a completely fresh install, so I have no ability to roll back the driver. If anybody knows of there being a previous driver available that would work on the new MacBook Pro's network adapter, that'd be great!

Any help would be great, thanks!

MacBook Pro 16", macOS 10.15

Posted on Nov 20, 2019 4:33 AM

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eddieanthony Author

Level 1

11 points

Posted on Nov 21, 2019 10:10 PM

Just split my network, still running into the same issue when connect to the 5Ghz band.

Edit:

My router is tri-band (1 2Ghz & 2 5Ghz), and it offers an option to have the two 5Ghz bands paired into a single SSID. As soon as I turned that off (so 3 separate SSIDs), I’m now seeing full performance out of one of the 5Ghz connections.

I’ll monitor it going forward, but so far it seems better than previously!

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24 replies

eddieanthony Author

Level 1

11 points

Nov 20, 2019 10:31 AM in response to Loner T

Yeah, I do. A newer WiFi 6 router that switches bands automatically.

Nov 20, 2019 5:27 PM in response to eddieanthony

Just got my MBP 16 today. I have the same problem and I also have a wifi 6 router (Netgear X12)

Nov 20, 2019 5:35 PM in response to andysd

Just tried 7.35.118.40, it's not working.

eddieanthony Author

Level 1

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Nov 20, 2019 10:58 PM in response to andysd

That’s not the driver I have installed though, I’m running driver version 101.10.152.3 for 802.11ac Network Adapter.

Loner T

Level 9

59,536 points

Nov 21, 2019 3:39 AM in response to BenPicard

BenPicard wrote:

Just tried 7.35.118.40, it's not working.

.40 is not valid for the new 16-in rMBP.

eddieanthony Author

Level 1

11 points

Nov 21, 2019 9:32 PM in response to Loner T

This is where I’m getting it from. I don’t know where to find it in Windows.

Interesting, as I purchased in the US.

eddieanthony Author

Level 1

11 points

Nov 21, 2019 10:26 PM in response to Loner T

I have an ASUS GT-AX11000

Speedtest tells me that my connection is fairly steady now, but actual downloads are still all over the place. How would I go about tuning the RF?

Loner T

Level 9

59,536 points

Dec 1, 2019 7:56 PM in response to vinit130

Windows Speedtest...

Loner T

Level 9

59,536 points

Nov 21, 2019 3:42 AM in response to andysd

andysd wrote:

You might be hitting the issue with the Broadcom driver version 7.77.110.0?

This driver is not valid for the new 16-in rMBP, which has a different Broadcom configuration. Check the PID/VID on the new rMBP.

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16 inch 2019 MacBook Pro running into Broadcom WiFi driver issues on 1909