Mac Studio not connecting via ethernet unless connected directly into Fiber Jack.

As you can see my 2022 Mac studio will not connect via ethernet unless plugged directly into fiber jack. All my other devices work via router or switch connection. Studio just won't connect.


Any input on fixing this? I ran cat 6 through my basement up to the fiber box since my office is the furthest part of my house.

Mac Studio, macOS 12.6

Posted on Jul 2, 2023 02:01 PM

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14 replies

Jul 2, 2023 07:14 PM in response to Servant of Cats

Tech specs for Mac Studio say:


Ethernet

  • 10Gb Ethernet (Nbase-T Ethernet with support for 1Gb, 2.5Gb, 5Gb, and 10Gb Ethernet using RJ-45 connector)


NB> NOT 100Base-T


that is where I was heading as well.


also, to support speeds above 100 Base-T, a modulated signal is required, and that requires that all four pairs of wires be present and wired correctly.


100 and slower just needs two pairs of wires.

Jul 2, 2023 03:16 PM in response to Kansasjose

Did the Internet service provider's technician verify Internet access at the router, or only at the jack? If only at the jack, was this router provided by your ISP or is it one you own? For the latter, did you verify that this router is supported by your ISP?


Is the "Google Fiber jack" an ONT? The ONT is a device that connects to the fiber optic cable and converts the optical signals into electrical signals that can be used by your home network. It acts as a gateway between the fiber network and your local area network (LAN).

Jul 2, 2023 06:56 PM in response to Kansasjose

What speeds does the router support on the side facing the Mac Studio?


The Mac Studio has "10Gb Ethernet (Nbase-T Ethernet with support for 1Gb, 2.5Gb, 5Gb, and 10Gb Ethernet using RJ-45 connector)." A MacBook Pro that is old enough (mid-2012 or earlier) to have built-in Ethernet might support "10/100/1000BASE-T (RJ-45)"


I'm thinking that the Mac Studio's Ethernet port might not run at anything less than Gigabit Ethernet speed – and that if the router worked with an old MacBook Pro, it may be because the router was offering 100 Mbps, and the MBP auto-negotiated down to that level.


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Mac Studio not connecting via ethernet unless connected directly into Fiber Jack.

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