The serial number you entered is not valid. Try again. (1)

[opensyszul]

I get this error when try to activate my software Autodesk 3ds Max Design 2011

i already put the serial number correctly from behind the box

need help!

[camilo.lemos]

Hi opensyszul and welcome to the forums!

Your product has likely been upgraded to a newer version.

Please, send me the serial number and request code of your product via Private Message (click on my camilo.lemos profile name and then on Send This User a Private Message).

Thank you,

[opensyszul]

sent tq