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JP_102240651-Visitor
1-Visitor
October 6, 2025
Question

Mathcad 9 won't recognize license

  • October 6, 2025
  • 2 replies
  • 433 views

My version of Mathcad 9.0.0 suddenly refuses to acknowledge my active license information. The license should be valid at least through the end of this year and was working fine last week.. I have gone through the process of retrieving my license file from the PTC dashboard with no success. 

This is very disruptive and I need this resolved quickly.

2 replies

L
LucMeekes23-Emerald IV
23-Emerald IV
October 6, 2025

Note that your license it tied to (what Prime believes is) your primary internet connection. It means that if you changed internet connection, such as from Lan to Wi-Fi or vice versa, your 'primary internet connection' may have changed and the license is not valid, until you change back.

If that does not solve your problem, you need to contact PTC license management since we, mere users of the software cannot help you with licensing.

 

Success!
Luc

A
anursinghCommunity Manager
Community Manager
October 22, 2025

Hi @JP_10224065,

 

I wanted to see if you got the help you needed.

If so, please mark the appropriate reply as the Accepted Solution. It will help other members who may have the same question.
Of course, if you have more to share on your issue, please pursue the conversation. 

 

Thanks,
Anurag 

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