I’m sorry but I have no idea what all that means. I have noticed when I tried the suggestions in the article link posted by you that i kept seeing references to AMD. The chip in the PC is an Intel i7. Have I got the incorrect iteration of MINT installed? I installed Mint 20 on both desktops, the AMD and the Intel from the same USB drive. I got no warnings during the installation process that the wrong iteration was being installed. My modem is a NetComm 6547 not a Broadcom or Realtek.