Reportedly, there have been instances where a Mac Mini has caused a disturbance in the Bluetooth and Wi-Fi signals of the Mac Mini. Often, a simple solution is to switch to the 5GHz frequency while using Wi-Fi. But Bluetooth does not offer the 5GHz frequency, so the best solution is to move the dock away from the Mac Mini. This is not a professional solution, but it is known to work. But the best solution would be to use certified cables and devices, which may be expensive, but you’ll undoubtedly avoid facing this problem.