license NI-IMAQ for IEEE 1394 suddenly inactive

[sandi3D]

Hello,

I'm working on the build of a program using two firewire cameras, with a NI-IMAQ vision acquisition licence bought around July I think.
My program ran perfectly last night but this morning when I reactivated it, It refused, sending this error message :
"Warning -1074364385 occurred at an unidentified location

Possible reason(s):

NI-IMAQ IEEE-1394:  (Hex 0xBFF6801F) No license for NI-IMAQ for IEEE 1394 Cameras"

The two cameras run fines, along with the PCI card, they even send correct images and sequence on the Measurement&automation tool but my vi code is not runing anymore.

Does anybody know what could be the source of this problem ?

Thanks for your help,

Antoine

[Rlima]

            Hi...

           I have applications using IMAQ & IEEE,  Have same problem  with activating licensing.  my software runs fine then suddenly stops working  with this similar error.   I reactivate the license and works again, but as it todday I don't know whats the root cause for this to be happening.  this issues causes down time from production. also  i have a corrective action pending for this to upper management

           So far what i do, is just reactivate the software, I have save the number on a notepad file on each pc that runs this software, soo i just re-enter the numbers.   N;ow I know I'm not the only one dealintg with this.

           Rlima.  Regards.

[Nate.H]

Hello,

Could both of you reply with what versions of the NI-IMAQ for IEEE 1394 driver you are using? This is a strange problem, especially if the cameras will still work in MAX (Measurement & Automation Explorer). Also are either of you in a situation where you computer ID would change? Maybe changing hard drives or Ethernet cards? This might cause the license to become invalid.

Best Regards,

~Nate

[Rlima]

     Hi.  Nate..

     The version for  IEEE = 2.0.1  and  for VISION (IMAQ) = 7.1.   I'm using LabVIEW 7.1

     No boards have been change to the PC,  you're right my cameras still work if i run MAX.

     My equipment is running the suddenly when running for next inspection the error appears

     Regads.  Rlima

[sandi3D]

Hi,

the problem was solved like you said by reactivating the licence. As of today, I can't think of anything that would have disabled the licence.

I'm using NI-IMAQ 3.7.1, with LabView 7.1

Thanks for your help.

[Nate.H]

Hi Rlima, Antoine,

Antoine, I'm glad that you were able to re-activate and get things working again!

I'd suggest repairing the NI-IMAQ for IEEE-1394 driver for this reoccuring problem. The only reason I can think of that LabVIEW would not recognize an activated driver, but MAX would, is that the driver somehow did not get installed correctly.

Best Regards,

~Nate