I have a Broadcom BCM94352Z (Lenovo pull) in my Mini-ITX Core i7 Gen 8 box and I have had persistent dropping of wifi and lagging BT mouse since building it months ago. The card is properly seated and antennas properly connected. The design of the MoBo places the card within a few centimeters of the power supply so I wonder if the power supply could be causing interference. Graphics cards have been causes of similar issues, but I am using the on-board UHD Intel graphics chip included with...
Can power supply interfere with BT/WiFi?
Can power supply interfere with BT/WiFi?