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Belkin f2cu040 USB-c to Ethernet

I purchased this adapter from the Apple Store in early 2020. When I plug it into my 2019 MacBook Pro, I hear a loud fan noise and then my MacBook crashes. I can restart the MacBook, and it may work or it may crash again. After the second crash, typically it will work and the Ethernet connection will function.


Is anyone else having this issue, and what is Apple doing to address it?

MacBook Pro 16", macOS 10.15

Posted on Apr 24, 2020 9:44 AM

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2 replies

Apr 25, 2020 6:23 PM in response to Lori in MN

Hello Lori in MN,



Thanks for that info and for choosing the Apple Support Communities. If I understand correctly, you are unable to use the Belkin USB-C™ to Gigabit Ethernet Adapter with your MacBook Pro, as it causes issues. You can figure out if unexpected behavior is related to a user file or setting by trying to reproduce the issue from another user account. This process includes creating a new user account, logging in to it, and testing for the issue.



How to test an issue in another user account on your Mac



Next, use safe mode to start up your Mac as it does the following things:



  • Verifies your startup disk and attempts to repair directory issues, if needed
  • Loads only required kernel extensions
  • Prevents Startup Items and Login Items from opening automatically
  • Disables user-installed fonts
  • Deletes font caches, kernel cache, and other system cache files



Log in to your user account and test the issue while in safe mode and then restart normally and test the issue again.



How to use safe mode on your Mac

Graphics performance limited in macOS Recovery, safe mode, or Guest User mode



Cheers!

Apr 25, 2020 6:23 PM in response to Lori in MN

Hello Lori in MN,



Thanks for that info and for choosing the Apple Support Communities. If I understand correctly, you are unable to use the Belkin USB-C™ to Gigabit Ethernet Adapter with your MacBook Pro, as it causes issues. You can figure out if unexpected behavior is related to a user file or setting by trying to reproduce the issue from another user account. This process includes creating a new user account, logging in to it, and testing for the issue.



How to test an issue in another user account on your Mac



Next, use safe mode to start up your Mac as it does the following things:



  • Verifies your startup disk and attempts to repair directory issues, if needed
  • Loads only required kernel extensions
  • Prevents Startup Items and Login Items from opening automatically
  • Disables user-installed fonts
  • Deletes font caches, kernel cache, and other system cache files



Log in to your user account and test the issue while in safe mode and then restart normally and test the issue again.



How to use safe mode on your Mac

Graphics performance limited in macOS Recovery, safe mode, or Guest User mode



Cheers!

Belkin f2cu040 USB-c to Ethernet

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