Hi Anthony,

The reliability of my 861v6 + ID40 card increased greatly with the 6.03 firmware upgrade. Also I use a Control:10 as my Core - I would suggest configuring the Control:10 as core and rebooting the core and then rebooting everything.

OOTH, the 861v6 sounds misconfigured if the HD621 doesn't send audio to the processor. The obvious gotcha for the non-initiate is that all the defined HD621 sources require Audio input to be set to "IE44:MM" instead of "last valid".

Some of the helpful Meridian Hitchhikers may be able to help and critique the config file used by the program to configure the processor. IMHO the bass management is the trickiest to get right.

Primary: 818v3+ID41, M6 stereo pair, M SpeakerLink cabling, Sonos+96kHz Cullen, silver DSW
HT: Marantz prepro, 271, DSP3300, 8K SE FL/FR pair, DSP M6x2, DSP320x4 (ceiling), black DSW, 520 RL/RR rear in-walls
Living Room: G65, 640 L/R in-walls, UHD722, MS600
Vac. Home: G61, HD621, 4xDSP3100, DSP3100HC
MDMS:NUC/ROCK+TrueNAS Core 12.0 ZFS file server