When I connect the USB and LAN cable does not my trackpad

Hey guys how are you.

When I connect the USB and LAN cable does not my trackpad

How can I fix this error. Please teach me.

Which macbook model do you have?

a USB mouse still works?

your keyboard still works?

No matter which USB port you use?

No matter what USB device allows you to create this error?

Tags: Notebooks

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