I remember DJ Delimentary (the four deck mix guy) having a nightmare with that at the BPM show one year.
He’d gone from using Pioneer CDJs to Denon SC2900s, and was trying to set up for a live performance at the show. He just couldn’t get everything working with the wifi (thousands of people at the NEC).
Called the Denon guys over. Still no joy.
He eventually had to give up and wheel his flightcase away. No performance.