Received my new iMac today and have just set it up. Router is Apple AirPort Extreme on the desk next to computer. I don’t know whether WiFi, or a hardwired Ethernet connection between the router and computer would work best. I set up both, thinking the iMac would preferentially use one of these. I was surprised to find in system preferences that both seem to be active. What is best to do then? Is there any harm, or alternatively any advantage, in having both of these active? Thank you.