we are unable to use vlan since 4.4.1.1177 with qnap ts-463xu-rp. this worked before with vlan 199 and qnap firmware 3.x and a 10gb qxg-10g1t card connected direct to hp esx dl360g10 10gb nic hp.
in 4.x you can, as wished by customers, set more than one vlan per nic. i could net got following running.
* esx 6.7, dl360g10, 10gb ethernet nic for qnap
* existing vmkernel, vlan 199 for veeam
* qnap 463 with 10gb single ethernet nic
* both directattach together
if we change both sides to vlan 1 it works again like it did with qnap firmware 3.x
qnap side:
* i had the 10gb adapter with dhcp
* subinterface vlan 199 static ip
* unable to ping from esx or qnap each other
any help welcome
greetings