Did you change the native VLAN to IoT or just added the tag and left the native VLAN on the switch port set to default? You should be able to change the native VLAN and leave tagged VLANs as “allow all”.
My only other thought is how did you isolate the IoT network and are you able to access other devices from default to IoT?
They just bought up the largest waterpark in Illinois… yep, a waterpark.
The last article I read on it said they had big ideas to increase profit at the waterpark and it was something the old owners never thought of, which is to start selling alcohol. I can’t imagine how much a watered down margarita at a waterpark is going to cost.