Installation & Licensing

Posts: 12
Registered: ‎09-05-2011
Message 1 of 3 (296 Views)

Autocad Civil 3D 2009

296 Views, 2 Replies
09-05-2011 08:51 AM

I had formtted PC & reinstalled Autocad Civil 3D 2009.At the time of rgisteration one message is appearing that Serial No is not Valid.I had used this serail no last two yeares.Now what happend i dont Know.Pls help.


                         Please let me know how to generate Host name & Host ID of the PC.



Justin Joseph


Product Support
Posts: 1,459
Registered: ‎05-21-2010
Message 2 of 3 (288 Views)

Re: Autocad Civil 3D 2009

09-06-2011 12:54 AM in reply to: justin422

Please use one of the manual activation method mentioned here


if you have network license hostname and hostid can be found using the following method

If my post answers your question, please mark it as an Accepted Solution, so that others can find answers quickly!
For more tips & tricks:

Hashim Mundol
Autodesk Product Support
Autodesk, Inc.

*Expert Elite*
Posts: 9,930
Registered: ‎01-14-2005
Message 3 of 3 (277 Views)

Re: Autocad Civil 3D 2009

09-07-2011 10:10 AM in reply to: justin422

Your serial number may not be valid for a few reasons.  If your serial is for a network verison and you have installed as stand-alone, then your serial number will be invalid for activation.  You cannot activate a network seat as stand-alone.


You will need to install the NLM and get a new LIC file, if you were hosting your NLM locally.  If it was hosted on another machine, then simply reinstall as a network seat and point the client to the hostname of the NLM server.


Please call Autodesk Product Registration and Authorization:

1-800-551-1490 > Option 1 (English) > Option 2 > Network

You will need to provide your serial number and ethernet ID of the new license server. > This will break down your current license file into plain english and you will find the serial number there.

You should download the lastest server tools here:


If your 2009 was under Subscription and was upgraded to a newer version and your Subscription has expired, then your old serial number will be invalid.  Any upgrade or crossgrade without Subscription will also invalidate your serial number.



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