Hmm, based on what you provided in your post, I suspect that the aluminum enclosure on that Acasis M002Pro is almost certainly acting as a Faraday cage, interfering with Bluetooth (and potentially Wi-Fi) signals. Since Bluetooth operates on the same 2.4 GHz band as Wi-Fi, it’s particularly sensitive to physical barriers, especially metal ones like the heavy aluminum shell that wraps around your Mac mini in the Acasis dock.
The fact that your Logic (Logitech?) keyboard reconnects when moved closer to the docked unit reinforces this. It suggests the signal is being severely attenuated, and the receiver inside the Mac mini is struggling to maintain a stable connection when there’s even a moderate distance (like your 24") between it and the keyboard. Since you didn’t experience the issue before installing the enclosure, the culprit is almost definitely RF interference or shielding caused by the enclosure itself.
Ok, what are some potential options?
- Use a USB Bluetooth adapter: Plug a Bluetooth 5.0 USB dongle into the front of the Acasis dock, or even better, into a short extension cable so you can position it out in the open. This creates a separate radio outside of the aluminum box and usually fixes signal strength issues.
- If your keyboard connects via a USB receiver (some models do), try placing the receiver on a USB extension cable and move it away from the dock—ideally above or beside the Mac mini, not behind it.
- For testing, try using the keyboard with a USB-C or USB-A cable (not all Logitech keyboards allow this.) If the issue disappears entirely, then you’ve confirmed it's 100% Bluetooth interference.
