After upgrading to RekordBox 6.7.3 Link mode no longer works

I have had quite a stable setup for a very long time - but after upgrading to 6.7.3 (on Win11-22H2 - 22621.1928) the Link no longer works.

The CDJ2000 Nexus gets IP addresses, I can see them trying to transmit to UDP 50002 and rekordbox never answers. Verified that there are no other proceses hogging the port. Windows Firewall is off, and Wireshark can se the traffic on the device.

PSvNFSdLog.txt has tons of the following entry:

10 Jul 2023 22:42:23  MainComponent::timerFuncMntMonitor WA mount not complete total = 11 now = 0
10 Jul 2023 22:42:23  MainComponent::timerFuncMntMonitor WA mount not complete total = 11 now = 0
10 Jul 2023 22:42:23  MainComponent::timerFuncMntMonitor WA mount not complete total = 11 now = 0
10 Jul 2023 22:42:23  MainComponent::timerFuncMntMonitor WA mount not complete total = 11 now = 0

I have tried multiple switches also to see if there is something changed on the network firmware that could have been blocking this.

What other logs should I try looking at?