Got error 'IO Channel number out of range when creating a door on AC1/AC1A/AC1Plus' on the IO module using IOU number 17
Same exact door configured on module with IOU number 16 or less saves OK
The IO module is configured with an IOU number that is above the MAX IOU modules supported by the NetController.
Note that the above is true even if there is only ONE module configured.
Delete the IOU module and recreate it using an IOU number at or below the max IOU number supported by the Net Controller.