I got my Raspberry Pi 4 running fine, using OpenWrt, for a quite long time. But now since 1 hour i am experiencing some issues. One of my vlan subinterfaces on eth0, my eth0.3 interface is no longer present for some reason. Reboot didn't help. Even though, RX and TX traffic is still going through.
What might be the reason here? And how can i fix this?
All the other vlan subinterfaces are running fine, but out of nowhere this happened a few minutes ago.