After 3.28 upgrade from 3.25 on RB433AH I have a problem:
[user@MikroTik] > ip route print
Flags: X - disabled, A - active, D - dynamic, C - connect, S - static, r - rip, b - bgp, o - ospf, m - mme,
B - blackhole, U - unreachable, P - prohibit
It works for me on my other about 20 routerboards (mostly RB433AH). Recently I’ve done firmware upgrade from 3.22-3.27 to 3.28 on them. Only three of them failed.
One RB333 (nstreme dual + bridge) after reboot disabled some interfaces. So I have to go connect through ethernet directly and restore configuration.
Another RB433AH (station WDS + bridge) was broken and kernel won’t start. Full reinstall of 3.28 and last configuration restore helped.
Third one (AP WDS + bridge) was upgraded successfully, but (stable/legacy) ‘routing’ package was broken. Switching to ‘routing-test’ helped.
Before 3.28 version my .npk upgrades processed more smoothly. Now I’ll be more prudent with these updates.