Same issue here. Tried both DVA3221 on ESXi 8.x and baremetal (MSI Nightblade X2B i7 6th generation, Nvidia GTX 1070 and Killer E2400 Gigabit LAN).
(I got it working once on ESXi, but had to increase disk space and could never get it working thereafter because of corrupt pat file at 55% progress).
I get an IP address when booting TCRP Friend, but it doesn't respond on that IP address when connecting with ip:5000 and it's never found in finds.synology.com.
Tried both realmac and random mac.
I would very much like to run face recognition etc on my cameras using Synology Surveillance Station.
How can this be resolved? Can someone please look into network setup/drivers?