Enttec DMX USB PRO User Manual page 14

Then close all the windows that got you to that point, with
, and try using the device again.
Apply
14
This will bring up a box where you
can change communications settings
for the port.
If you click on
Advanced, this takes
you to a window where
you can choose a
different COM Port
number. Select a
different port number
and click OK.
or
OK