I have a problem with rb411
i want to upgrade from version V.3.30 to V.4.15
when upgrade finish the routerboard tells that the license key is invalid
i try to update but a error shows up
i downgrade it and the license is ok now
and tells that is upgradable to V.6.x
i try again to upgrade to 4.15 same problem .
i have 6 more rb400 series I upgrade to V.4.15 and they are ok
do I have problems with this RB411 ????