The community will undergo maintenance on October 16th at 10:00 PM PDT and will be unavailable for up to one hour.
I am unable to access my student or education license product code, it's not working
One time (https://community.ptc.com/t5/Mathcad-Installation/License-Pack-is-not-working/m-p/825932#M2455 ) should suffice...
Please specify which version of the program you are using.