Mac Studio built-in Ethernet fails while adapter works
In a classroom with 12 M1 Mac Studio machines, 8 suddenly started showing a . That usually means the Mac did not receive a normal network address. The machines had worked in the same room for three years, were fine on Friday, and stopped checking in by Monday morning.
A Mac laptop connected to the same network port received a normal . The affected Mac Studio machines could connect when a was used, so the failure seems tied to the . Wiping one affected machine and removing all JAMF profiles did not fix it.
Moving a working Mac Studio to one of the supposedly bad spots still allowed it to get an , so the issue does not look like a simple bad port or cable problem.
Key points
- 8 of 12 M1 Mac Studio machines started using a .
- The same network port gave a normal to a Mac laptop.
- A restored network access on affected machines.
- A wipe and removal of JAMF profiles did not solve the issue.
- A working Mac Studio still worked when moved to a problem location, making a simple port issue less likely.