I have recently purchased new computers in our office. I am trying to install my existing seat of AutoCAD 2012 on my new desktop. I have the serial number that was provided to me some time back from Autodesk. When I attempt to activate the software, I get an invalid serial number message, with no additional information.
that serial number was probably upgraded try activate manually per this link
You can use the online method to activate your license here:
http://www.autodesk.com/licensesupport or www.autodesk.com/register
Or you can can call Autodesk Product Registration and Authorization:
1-800-551-1490 > Option 1 (English) > Option 1 > (Stand-alone)
Asia / Pacific: 65.6735.5688
Europe / Middle East / Asia: 41.32.723.9595
You will need to provide your serial number and the request code.
Welcome to our community!
Please drop me a private message (Click on my Raimi.Buang profile name and then on Send This User a Private Message) with the Serial Number, Request Code and Registration details.
For information on finding the Request Code, please refer to the following link Here.
I look forward to hearing from you.