When starting the program I get the warning message No. 47 “The Dlubal product key does not match your license. Please either install a key with the correct license number or load the correct authorization file (*.ini)”.


This problem cannot be generally solved without further background knowledge. Therefore please contact our support at support@dlubal.com and send us the following information:

  • We need the diagnostics file (authorization.txt). You will receive it if you follow the instructions shown in figure 2. Just run the program in demo mode.
  • Please specify which program you are running (RFEM, RSTAB, RX-TIMBER, etc.).
  • If you are trying to access a network dongle, please inform us if the computer you are using is located on the same network as the license server, or if a VPN connection is used to communicate with the server.


warning 47, warning No 47, license problem

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If not, contact us or send us your question via the online form.

(267) 702-2815


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