ROCK does not recognize Squeezebox - [SOLVED]

I’m testing ROON on PC (Windows 10) with my Squeezebox (Duet Receiver). No problem, Squeezebox will be recognized and works great!
Then I bought a NUC7i3BNH and I installed ROCK Version 1.6 (build 416) stable.
The problem: ROCK does not recognize Squeezebox! (My Auralic Aries mini in the same network is recognized and it works great.)

  • LMS is uninstalled
  • NUC and Squeezebox are on the same switch
  • I changed again to ROON on PC: Squeezebox is recognized
  • I changed again to ROON on ROCK: Squeezebox is NOT recognized

How can I solve this problem? I want to buy ROON at the end of the trial, but the problem with the squeezebox has to be solved.

Best regards

I found the solution:
The IP-Address of ROCK must be entered on Sqeezebox! (Before, the IP of PC was saved.)
I used this manual: (PDF)