Some how, I got a bridge in "Network" that stops all internet traffic until it is stopped. I have tried stopping it and the network works until I reboot, then it comes back. I have tried deleting it in Network Manager with the same results. How can I get rid of this bridge permanently, short of reinstalling Mint again? I have been using 18.3 for some time and only encountered this problem within the last few days. Can anyone help me?