left side ports no longer work on MBP 2017 15" w/touchbar
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left side ports no longer work on MBP 2017 15" w/touchbar  


Active Member
Joined: 3 years ago

While in MacOS I plugged in my eGPU but by the time I unplugged it minutes later the left hand side Thunderbolt ports stopped working.

I've tried rebooting, & resetting the SMC. I'm not even sure if this is a hardware or software problem that could be fixed by reinstalling the operating system.

Has anyone encountered the issue where their ports have stopped working in MacOS and learned how to fix them again?


To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.


Illustrious Member Admin
Joined: 4 years ago

@sabrefoxx, Do you have another Thunderbolt 3 device to test?


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