Disable wifi in V3 hub?

I set up my V3 Aeotec Smartthings hub with the latest Smartthings app and a wifi connection, it’s been running with no issues for months. I plan to relocate it to a different area in the house where an ethernet connection is available and disable wifi. Connecting ethernet does not disable wifi, it just sets up a second network connection. Until I figure this out I’ve just blocked the hub MAC address at the wifi access point so that it only connects via cable.
How do I disable wifi without a factory reset and specifying ethernet during setup?

I dont think there is a way to do it. I did exactly what you did. If I have problems paring a light switch or something its nice to unblock it and use wifi so I can move the hub right next to the device.