MacOS – MBP Late 2016 Thunderbolt 3 issue: connected cables not recognized after sleep/wake up

macossleep-wakethunderbolt

I have a new MacBook pro, late 2016 with Touch Bar, and recently bought some adapters (Aukey) to use my usb mouse, ethernet cable etc.

One thing that really bugs me is that the ethernet connection is lost whenever the computer wakes up. I have to unplug and re-plug it in again, i.e. the ethernet device is "unmounted" and does not get automatically detected again.

I didn't verify this behavior with my other equipment yet, but I guess this could be a general thing?

Anyway – is this a common error? Is there a cure?

Best Answer

I've had a similar issue with the Monoprice Select Series USB-C to 3x USB-A 3.0, Gigabit Ethernet & USB-C Adapter. If I use the MacBook Pro 2016 w/ touchbar in clamshell mode with this adapter, the MBP will not wake from sleep at all. It's almost as if the adapter has gone to sleep, even though the lights on the ethernet port light up and blink and the AC adapter is plugged into the usb-c port on the adapter.

I have another ethernet adapter made by Anker that has 3 USB-A 3.0 ports on it that works just fine though. Might be a difference in chip set?

Related Solutions

MacBook – MBP won’t wake up from sleep

It sounds like your battery is in bad shape. Your MBP goes to sleep and when it runs out of juice it simply dies.

If that's not the case - meaning the battery got's juice after a hard reset (holding power button for 5+ secs) without hanging to power supply then: First check if there are any Firmware updates. Then try the following:

Open up a Terminal in /Applications/Utilities/Terminal and to disable hibernation type:

sudo pmset -a hibernatemode 0

then remove any trace of previous hibernations:

rm /private/var/vm/sleepimage

After that reset the SMC aka System Management Controller:

MBP with removable battery:

Shut down the computer.
Disconnect the power adapter
Remove the battery.
Press and hold the power for at least for 5 seconds.
Release the power button.
Reconnect the battery
Turn on the computer.

MBP with non removable battery:

Shut down the computer.
Plug in the MagSafe power adapter if not already connected.
Press the Shift-Control-Option left side keys and the power button at the same time.
Release all the keys and the power button at the same time.
Turn on the computer.

The LED on the MagSafe may change states - if so it means your SMC reset was successfull. To enable Safe Sleep again open Terminal and sudo pmset -a hibernatemode 3. Hope that help's.

Update To have total control of Sleep try this http://semaja2.net/insomniaxinfo

MacOS – Why does the MBP sleep on Mountain Lion and often not wake up

I had a similar problem with my late 2012 MacBook Pro. It wouldn't wake after a long sleep: black screen but system running (I could access it via SSH).

Before trying any solution, I recommend you to reset the SMC and check if the problem persists. Also run pmset -g in Terminal (it won't change or break anything) and take note of your current settings.

I solved this problem disabling hibernation, which was introduced by Apple with a firmware upgrade. I did this by running this command in Terminal:

sudo pmset -a autopoweroff 0

To reset the original setting:

sudo pmset -a autopoweroff 1

The autopoweroff option is undocumented by Apple (doesn't appear in man pmset); it seems to be related with the "Deep Sleep" mode.

Best Answer

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MacBook – MBP won’t wake up from sleep

MacOS – Why does the MBP sleep on Mountain Lion and often not wake up

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