Network adapter disappears after MacBook goes to sleep

Hello

I am using MacBook pro 16 (2019) for work, and recently I needed to install windows 10 via boot camp.

But I ran into the problem that the device manager Broadcom adapter disappears after waking up from sleep.

In the adapter settings, I have forbidden to turn off this device to save energy.

Found the following error in the event viewer:

Miniport Broadcom 802.11ac Network Adapter, had event Fatal error: The miniport has failed a power transition to operational power.

And I have to reboot my laptop every time to use the internet again.

Would you please help me?

Windows 10 Pro Version 10.0.19043 Build 19043

Broadcom 802.11ac Driver Version 101.10.152.4

Posted on Oct 16, 2021 6:17 AM

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5 replies

Loner T

Level 9

59,536 points

Oct 19, 2021 7:56 PM in response to stishanok

As a test, can you disable Sleep and Hibernate, re-install the 11ac driver and test if closing and re-opening the lid cause any further issues?

Loner T

Level 9

59,536 points

Oct 16, 2021 6:44 AM in response to stishanok

In Windows Device Manager, do you see a second instance of the 802.11ac adapter?

stishanok Author

Level 1

5 points

Oct 19, 2021 2:00 PM in response to Loner T

There have never been any problems with bluetooth. No devices have changed on the computer.

stishanok Author

Level 1

5 points

Oct 16, 2021 7:06 AM in response to Loner T

Device Manager shows only one 802.11ac adapter.

After waking up from sleep, this adapter disappears from the device manager.

Loner T

Level 9

59,536 points

Oct 17, 2021 5:22 AM in response to stishanok

This Mac has a combined Bluetooth/WiFi module. Have you had any failures with BT in Windows? Has the logic board been replaced on your Mac?

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Network adapter disappears after MacBook goes to sleep