Support request for Xiaomi MiWifi HD R3D

[remittor]

@bethnard

For the tagged VLANs, the wireless APs do not work, no matter what...
Is there any known bug related with that?

• Netgear r7800 VLAN question OpenWrt 21.02.1
• R7800 Currently recommended build for VLANs?
• [PR] [WIP] ipq806x: request for kernel 5.10 + dsa

@bethnard

Why have the NSS builds been dropped off?

These assemblies turned out to be very unstable for long-term work.