This error may occur if NetSim is not run as an administrator.
To avoid this error while creating a new network scenario in NetSim:
- Do not start NetSim directly by double-clicking on NetSim shortcut present in your desktop.
- Instead, Open NetSim as an administrator, by right-clicking on NetSim shortcut in your desktop and selecting Run as administrator.
To avoid this error while opening a saved configuration file:
- Do not open Configuration.netsim file by directly right-clicking on in and selecting open with TETCOS NetSim
- Instead, Open NetSim as an administrator, by right-clicking on NetSim shortcut in your desktop and selecting Run as administrator.
- Open the Configuration file using the Open Simulation option available in the NetSim Home Screen window.
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