E-8302: CANNOT PLAY TRACK (C658)

Rekordbox 6.0.4 Using link export from PC (laptop) (Windows 10). database and music are on an external drive.

Tracks load fine to the internal player in Rekordbox but will not load to my CDJ's.

2 - CDJ 2000 NXS

1 - CDJ 900

1- DJM 900 NXS

All connected through a network switch.

If I CLOSE Rekordbox 6.0.4 and open 5.8.5 everything loads and works fine but NOTHING will load to the CDJ's in Rekordbox 6.0.4. 

Frustrating after waiting almost 2 days for the library conversion.

Now I feel I can't do any work in version 5 because it won't carry over to version 6 and I can't use 6 so I am destined to wait for another long conversion probably if i can't get this version of 6 working with link export.

I checked my Windows firewall and all of the Rekordbox traffic has a green check mark.