[OPEN] Linking with PC

Hello,

I just recently bought a pair of cdj 2000 nexus and tried connecting them to my pc.

I bought 3 new lan cables and a 100Mbps network lan switch.

When I connected my players and pc to the switch it succesfully connected and I was able to drag songs to my decks.

Now when I drag a track to a deck, the message 'Now loading' appears for around 1 minute, and after the following error:

E-8302: CANNOT PLAY TRACK (C630)

This happens at both decks. They all have the latest firmware and my rekordbox version is 2.1.1 (I won't be upgrading to 2.2)

Directly linking the 2 players together comes with no problem. Also linking the players through my network switch is also smooth.

How can I fix this?