New M4 Pro. WiFi keeps disconnecting, won't recognize 2nd monitor after restart.

Question

New M4 Pro. WiFi keeps disconnecting, won't recognize 2nd monitor after restart.

Just got my M4 Pro and Studio Display yesterday, and am finding two serious issues:

1) Sometimes my WiFi is blazing fast. Then, suddenly, sites won't load, and I get an error about being disconnected from the internet. I can't seem to get reconnected without without turning WiFi off/on again, and this morning I wasn't able to reconnect for about 5 minutes - then, when reconnected, it's as fast as ever.

2) Primary monitor is a Studio Display. I connected a 2nd monitor with an HDMI to USB-C cable into a USB-C port on the Mini yesterday when setting up and it worked great. This morning, upon starting up, it didn't recognize it, and won't recognize it after disconnecting & reconnecting it. HDMI to HDMI is working.

Any help appreciated.

Mac mini

Posted on Feb 1, 2025 04:58 AM

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Answer 1

den.thed

Level 10

88,762 points

Feb 1, 2025 08:25 AM in response to The Blue Chunks

Poorly shielded high speed USB-C cables, adapters and drives or a display, can cause Wi-Fi and Bluetooth Interference.

see > Resolve Wi-Fi and Bluetooth issues caused by wireless interference - Apple Support

Look over your physical setup and make sure that there are no high speed USB-C cables, adapters and drives or a display in-between the Mac mini and Wi-Fi Router.

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