You want the Q switch connected to your dac or server. For very best sound' put the router on a LPS, router to your D-link switch, D-Link to FMC - FMC to Q Switch, Q switch to server, server to dac. If you can put the FMC and Q Switch on a LPS as well. With this set up you have completely isolated your server and dac from as much noise has possible. Also FMC (Fiber optic) is cheaper to do then a good quality 10 meter run of ethernet cable and yes all cable including ethernet cable is important and can be heard in a high quality system.
Check out Computer Audiophile site they have a thread dedicated to this which will help you understand more if you need to and give you lots of ideas to try.
Sorry don't know what UAP-AC-Pro is,
Check out Computer Audiophile site they have a thread dedicated to this which will help you understand more if you need to and give you lots of ideas to try.
Sorry don't know what UAP-AC-Pro is,