FAQ 003248 EN-US


René Flori Licensing & Authorization RFEM RSTAB

After installing RFEM 5.20.01 or RSTAB 8.20.01, our network license does not work any more. What can we do?


With the release of customer version X.20.01, the license drivers of GEMALTO were also replaced. GEMALTO closes a safety gap when updating drivers. Therefore, it is necessary to install the new drivers on server and client.

Therefore, proceed as follows:

  1. Download the drivers: http://download.dlubal.com/?file=Sentinel_LDK_GUI_setup.zip 

  2. Quit the DLUBAL programs on the clients.

  3. Install the new drivers on the server.

The server is the computer on which the network dongle is inserted or on which the NET-SL was activated. The client is the computer where the DLUBAL programs are executed.


Driver update License problem 5.20 License problem 8.20

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RFEM Main Program
RFEM 5.xx

Main Program

Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements

Price of First License
3,540.00 USD
RSTAB Main Program
RSTAB 8.xx

Main Program

The structural engineering software for design of frame, beam and truss structures, performing linear and nonlinear calculations of internal forces, deformations, and support reactions

Price of First License
2,550.00 USD