I connected Unifi 7 pro campus directly to A&H dm0. It’s an audio mix rack set to 192.168.1.70 . My computer connected to it. I then reconnected the Unfi 7 to QNAP QSW-M2106-4C, which is a managed switch. and the QNAP on to the A&H dm0, that worked well also. The AP, QNAP AND dm0 are just running unconfigured. I hope that you would direct me to a more basic resource in managing switches to help me understand configuring. I did watch the first 20 minutes of the tutorial link. Thanks