Viso License Certificate Not Accepted During Installation
Last updated: Oct 29, 2026
Problem
Viso or associated Noldus software does not accept a newly provided license certificate during installation or activation.
Details
Occurs when a replacement or new license certificate is incorrectly formatted or improperly issued. The system fails to validate the certificate, blocking activation. Seen in institutional/university installation contexts.
Solution
1. Contact Noldus Support and provide the certificate file you received.
2. Support will verify whether the certificate was correctly generated.
3. If the certificate is incorrect, request a new, correctly issued certificate from Noldus.
4. Follow the specific installation steps provided by Noldus Support for applying the corrected certificate.
5. Refer to any documentation provided by support describing the exact steps for your installation scenario.