How to fix weak Wi-Fi on a M4 Mac mini when connected to a drive or dock The new M4 Mac mini Wi-Fi module is marked by that exclamation point.
Hours after the new Mac mini hit customers' desks, some users started complaining that when they hooked up a hard drive or SSD to the unit, they'd see Wi-Fi speeds drop, or be cut entirely.
Sporadic reports on social media are talking about how hooking up an external hard drive to a New Mac mini is dramatically cutting Wi-Fi speeds.
Let's look at why Wi-Fi speeds can be hit by attaching something like a hard drive, and what you can do about it.
In this case, the Wi-Fi base station, and the new M4 Mac mini.
