i have activited my redboxII but when i run the softwares it shows -this soft is not activited in this box.

hi all
i have a serious probleme in my three red box II
at the begning it works fine and now the problme perciste
the first the box error message say " box not found" the cable the usb alimentation the lpt port work fine so i think that the power of red box is umpty or whats the probleme.
the second the bleu light blink all times and it is not fixe the think that there was an instabilité of alimentation power.
the third work with some software lg samsung and the other not supported
so i have invistete a big mount to bought this materiels and now its damged
how can help me
emergency
Abdelouahab from algeria
thanks for all advance and repl and suggestion