FAQ 002288 EN-US

Licensing & Authorization RFEM RSTAB

When starting the program, I get warning No. 50 - Program authorization failed. What could be the reason?


If you are using a single-user license (students, for example), make sure that you don't try to get access to this license via remote access. Moreover, a single-user license cannot be used on virtual machines. Both cases cannot be covered by a single-user license.

If you see this message when trying to access a network dongle, it may be due to the server's response time. Copy hasp_48521.ini to folder C:\Users\#USER#\AppData\Local\SafeNet Sentinel\Sentinel LDK\ (please replace #USERS# with your own user name). Then open hasp_48521.ini and enter the IP address of the dongle server as well as the access times.

If you access the dongle server via VPN connection, please make sure that the IP adress of the dongle server is stored in the Admin Control Center (see FAQ 002070).

hasp_48521.ini (691 B)


student, warning No. 50, authorization failed, virtual machine, remote access

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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

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