M 4 Mini ethernet/wifi issue

Mac Mini M4 running Sequoia 15.6.1. Just connected to ethernet over mains wiring running from TP Link Deco X50 DSL modem. Apple TV uses same ethernet connection, works perfectly. When I startup, Mac recognises the ethernet is connected; open Safari and try to open a web page, get a message saying "not connected to the internet". Wi Fi and Ethernet both enabled and priority set to Ethernet first. Have to unplug ethernet - connection to web page then works. Re plug ethernet and everything works perfectly, Mac using ethernet to connect (I check using modem app, which shows both wi-fi and ethernet, but only the etehernet active after replugging). Frustrating, having to unplug etc. every time. Been through the ethernet setup routines, all fine. What gives?

Posted on Dec 3, 2025 9:33 AM

16 replies

den.thed

Level 10

90,706 points

Dec 4, 2025 11:12 AM in response to Simon Rob P

Simon Rob P wrote:

Thanks. It's a 4 unit mesh system. Unfortunately due to the configuration of the house, moving one of the units closer to the mini takes the signal away from one part of the house.

With a 4 unit mesh system, one would think that the Mac mini would have no problem connecting to one of the mesh units via Wi-Fi, without any need for the power-line connection.

If not, then I would seriously reconsider the placement of the satellite units.

M 4 Mini ethernet/wifi issue

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