Lutron HomeworksQS binding - password

I am new to openHab and I’m trying to escape from a Control4 installed system. I have Lutron HomeworksQS installed and working well, including communication with Control4 for control of audio through Lutron Picos. When setting up openHab, it finds the Lutron system but when trying to register it, it asks for a username and password. The Control4 installer assures me that there is no username or password defined, not even the default Lutron/Lutron. I can access the Lutron repeater through my router and no username or password is required to do this.
Please advise how I can complete the registration of the Lutron system in openHab without having to specify a non-existent username and password.