For network-floating licenses (where the key is plugged into a server, not the local machine):
Often the service is stuck in a zombie state.
Based on the architecture of the ISIS licensing system, the error can be attributed to one of the following four categories: For network-floating licenses (where the key is plugged
Date: October 26, 2023 Subject: Analysis of Error: "Cannot find a valid license key for ISIS Professional on this computer" Software Context: ISIS Professional (HYDRA Software Suite)
Proteus ISIS writes license data to protected system registry keys and folders (e.g., C:\ProgramData\Labcenter Electronics). If UAC is set to a high level, Proteus may not have permission to read these keys when launched normally. If you installed Proteus for "Just Me" instead
If you installed Proteus for "Just Me" instead of "All Users," the license file might be stored in a protected directory.
Proteus relies on a system variable called PATH to find BLM.exe. If another program (Python, Git, or a Windows Update) truncates your PATH variable, the License Manager cannot launch. If your school or company uses a network license server:
If your school or company uses a network license server: