In the debug.log file into C:\Program Files (x86)\Autodesk Network License Manager there's write:

22:16:44 (lmgrd) pid 3124
22:16:44 (lmgrd) Done rereading
22:16:44 (lmgrd) FLEXnet Licensing (v11.4.100.0 build 50818 i86_n3) started on PCXP (IBM PC) (8/11/2009)
22:16:44 (lmgrd) Copyright (c) 1988-2007 Macrovision Europe Ltd. and/or Macrovision Corporation. All Rights Reserved.
22:16:44 (lmgrd) US Patents 5,390,297 and 5,671,412.
22:16:44 (lmgrd) World Wide Web: http://www.macrovision.com/ - http://www.macrovision.com
22:16:44 (lmgrd) License file(s): C:\Program Files (x86)\Autodesk Network License Manager\license.dat
22:16:44 (lmgrd) lmgrd tcp-port 1010
22:16:44 (lmgrd) Starting vendor daemons ...
22:16:44 (lmgrd) Starting vendor daemon at port 2080
22:16:44 (lmgrd) Using vendor daemon port 2080 specified in license file
22:16:44 (lmgrd) Started adskflex (pid 3900)
22:16:44 (adskflex) FLEXnet Licensing version v11.4.100.0 build 50818 i86_n3
22:16:44 (adskflex) The vendor keys don't support vendor daemon, exiting
22:16:44 (adskflex) Vendor keys are:
0x8ff0321e
0xff7f1fce
0x83e6b787
0xdc146cfe
22:16:49 (lmgrd) adskflex exited with status 43 (No license file)
22:16:49 (lmgrd) Please correct problem and restart daemons

What mean the bold sentences!?!?

Have you got any ideas!??!

Thanks