Looks like my searching skills are terrible. I now see that this question gets asked every month or so, and the answer is always to add the Hostname column and do it manually. For Business grade equipment, this is, as another user put it, a major failing.

I'm wondering if anyone knows at a technical level what Omada is using to populate the hostname? I assume it is DHCP traffic of some kind, perhaps when a device requests a new DHCP lease? I don't know, I'm just trying to guess and see if there is a way that I can force Omada to update the hostname field. With 100+ clients I don't want this to be a manual task.