Have you tried downloading the owners manual? I found one online for my X-30.
From my manual: connect the dac to your Lan. Set the input on the dac to streamer channel and wait for the system to boot when the screen displays DSD 24.5 Mhz . Almost a minute.
Run the address line that you mentioned on a pc, Mac, or tablet. Open the settings of the X-30 bridge. There is no download or installation for the X-30.
Maybe that will help. I'd post a pic from my user manual, but I don't know how.

