Bootcamp Wifi Extremely Slow - 2019 MacBook Pro 16" - Can't solve

I've been having an issue in Bootcamp in that wifi speeds connected to either 2.4GHz or 5GHz networks are excruciatingly slow.

I have 1GBps service and not getting anything remotely in the universe when connected via wifi through Bootcamp. In Mac OS - all is well.

I have done all that was suggested in my original post and other research I have gleaned from others having similar issues with the 2019 MacBook Pro 16", but none worked. I have reinstalled Windows three times and have attempted to disable/uninstall the network card in Windows and install original Bootcamp drivers but to no avail. Disabled AX on my router. Same issue. Can't rollback driver either.

I am attaching the following screenshots in hopes this can provide any new suggestions.

Any help would be most appreciated.

Posted on Dec 8, 2019 1:36 PM

Top-ranking reply

Loner T

Level 9

59,536 points

Posted on Dec 8, 2019 1:49 PM

Isengard? Mordor? Do I need a Palantir now. 😜

Your WiFi card has the same PID/VID as a 2018/2019 13-in MBP. The version/FWID is different.

As a test,

Create a Windows System Restore point
Use Brigadier (https://github.com/timsutton/brigadier) to download the BC driver package for a 2019 13-in MBP (Model Identifier: MacBookPro15,4) using the '-m' qualifier
Try to install the Broadcom driver and test
If it does not work, rollback to the Restore point

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17 replies

Dec 9, 2019 4:56 PM in response to Loner T

No worries, but yes. It automatically rebooted the router once the setting changed.

Dec 11, 2019 7:33 PM in response to Loner T

Unfortunately, no.

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Bootcamp Wifi Extremely Slow - 2019 MacBook Pro 16" - Can't solve