I purchased a permanent academic licence for MathCad Prime 3.1 in late 2016. I have had to replace the HDD on my computer and have re-installed Mathcad Prime 3.1 using the DVD which came with my order and Mathcad is working in express mode right now. However, I cannot access the flexnet software (insufficient privileges) required to install my licence and restore full functionality as I do not have a current support contract. This does not seem right to me as I was told that I had a permanent licence for Prime 3.1 when I bought it. I am attaching my latest licence file from PTC if this helps.