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New iMac 24" Power Brick not working with wired Ethernet

Hello,

I have just received a brand new M1 iMac 24" with integrated Ethernet in the power brick. I am getting intermittent throughput and packet loss using a known solid Cat 5e cable. When I use the same cable plugged in to the Thunderbolt jack using a USB-C:Ethernet adapter, the problem goes away. I have received two new bricks and both have the same issue. Any other suggestions to troubleshoot?

iMac 24″, macOS 12.1

Posted on Dec 25, 2021 12:13 PM

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Question marked as Top-ranking reply

Posted on Dec 27, 2021 3:09 PM

hcsitas,

It is a Netgear ProSafe switch. Checked for Firmware update and was delighted to see that there was a new version. Updated and now problem SOLVED! Thanks for the help with this! Kind of surprised that no one has seen this kind of issue before. Mybe others will benefit! :)

7 replies

New iMac 24" Power Brick not working with wired Ethernet

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