Problems with XDJ-RX + Pro DJ Link + Mac Ventura + Synology NAS

I am having a heap of trouble getting LINK Export working properly on my M1 Mac mini running Ventura.

This is the setup:

• Music files are stored on my synology NAS

• Rekordbox 5 (5.8.7) running on the Mac mini. Library database is in the default local location.

• Driver version: 4.0.1

• Mac mini has wired ethernet connection to the LAN

• XDJ-RX wired ethernet connection to LAN

When I turn on the RX and launch Rekordbox, the Link button appears as expected in the bottom left corner. Clicking on the button activates the LINK, the button turns purple and it displays a wifi symbol. I assume this means it’s linked via wifi. The decks appear in the bottom of the window as expected but when I try to drag a song (file stored on the NAS) to one of the decks the RX unit give an error: “E-8305 UNSUPPORTED”

If I try to load a song where the file is stored locally on the Mac (same Rekordbox library, same file that gives the E-8305 error above), it loads to the deck and plays normally.

I did a test with my Windows 10 PC. I created a new RB library on it, using the same songs/files stored on the NAS. They load to the RX and play perfectly. The Windows PC does not have a wirelesss card and is connected to the LAN with an ethernet cable. When active, the LINK button shows [1]LINK, rather than the wifi symbol.

This test shows that the RX can in fact play files that are on the NAS…so it must be an issue with the Mac…but the RX can play files from the Mac local storage…so it must be a problem with the NAS…but the Windows PC can play songs from the NAS and around it goes.

I have tried turning off the wifi on the Mac to force LINK to use the wired connection. When I do this, the LINK button is greyed out.

The Mac firewall is off. In the network system preferences the ethernet connection has a higher priority than the wifi.

If I connect the RX directly to the Mac with an ethernet cable (bypassing the router) then the link button shows [1]LINK indicating it is connected via ethernet, not wifi. It still gives the E-8305 error in this configuration when trying to play files from the NAS.

NB: I have also tried with RB 6.6.9, created a new library, and get exactly the same issue. I can load tracks to the decks when they are located on the Mac local storage but not when they are on the NAS.

I’m stumped and would really appreciate any tips on how I can get LINK working smoothly on the Mac like it does on the Windows PC.