Installation & Licensing

Installation & Licensing

Posts: 22
Registered: ‎03-30-2010
Message 1 of 7 (6,483 Views)
Accepted Solution

Error [-15.570.0] while running Inventor 2011

6483 Views, 6 Replies
01-25-2011 05:10 AM

Greetings to all,


I am receiving an error while running Inventor 2011 installed on a Laptop running on Windows 7 Professional as follows.


A valid license could not be obtained by the network license manager.


If you are still unable to obtain a licsense,contact your administrator.


Error [-15.570.0]


I have also installed the NLM on the same laptop and when i perfom a status enquiry, all licenses are available and unused.

Through search engines, I was able to find some fixes eg Changing of Environment Variables and Allowing port 2080,2700-27009 and disabling of Antivirus but none of these worked.


The error still occur even when i specify the license file.


Has anyone encountered such a problem and knows how to fix it?


Kindly assist,


Product Support
Posts: 1,459
Registered: ‎05-21-2010
Message 2 of 7 (6,468 Views)

Re: Error [-15.570.0] while running Inventor 2011

01-25-2011 05:56 AM in reply to: SaintCrooner

please get the ipv6 patch for license manager (win7 has ipv6 by default)



also please make sure you can ping the server name resolving ipv4 address. if not please add an entry for hostname in hosts file.


link shows how to edit hosts file


let me know if you need more help


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.

Posts: 22
Registered: ‎03-30-2010
Message 3 of 7 (6,432 Views)

Re: Error [-15.570.0] while running Inventor 2011

01-25-2011 09:53 PM in reply to: hashim.mundol

Hello Hashim,


Thank you very much for the response.


I just want to inform you that the Patch worked for me and now my client is able to run Inventor 2011 installed with the NLM on the same laptop running on Windows 7 Professional.


Thanks alot for the assistance.


Peter K'onunda,

Product Support,

Numerical Machining Complex,


New Member
Posts: 2
Registered: ‎01-29-2011
Message 4 of 7 (6,165 Views)

serial numbers

02-15-2011 08:22 AM in reply to: SaintCrooner

when will there be new serial numbers?

CAD seems to be running out of numbers




Posts: 22
Registered: ‎03-30-2010
Message 5 of 7 (5,880 Views)

Re: Error [-15.570.0] while running Inventor 2011

03-08-2011 03:48 AM in reply to: hashim.mundol


I managed to install inventor 2011 on a computer running Windows 7 Professional which also acts as the licensing server and was able to solve the ip6 problem encountered  while running the software on the same computer by using ip6 support patch.


My new challenge is to get client computers running on Windows 7 too, to check licenses from the server which indicates that the licenses are available for use.

I still get the error above,...error 15.570.0.

Is it possible to get an urgent solution to the problem.

I have three users waiting for a remedy in the shortest time possible.


Thank you in advance.llo,


*Expert Elite*
Posts: 10,149
Registered: ‎01-14-2005
Message 6 of 7 (5,520 Views)

Re: Error [-15.570.0] while running Inventor 2011

04-07-2011 12:41 PM in reply to: SaintCrooner

For more information about Network License Manager connectivity issues and IPv6, please see my discussion post here:

Travis Nave Send TravisNave a Private Message                       Need help in your post? Mention me with @TravisNave
New Member
Posts: 1
Registered: ‎02-15-2007
Message 7 of 7 (1,355 Views)

Re: Error [-15.570.0] while running Inventor 2011

09-07-2013 01:34 PM in reply to: TravisNave

Thanks! this worked for me.


Did the microsoft fix first



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