topic Re: Do I have to update my mathcad , although my license is still valid in Mathcad https://www.ptcusercommunity.com/t5/Mathcad/Do-I-have-to-update-my-mathcad-although-my-license-is-still/m-p/1058169#M220702 <P>If your license is valid throughout the rest of this year, you shouldn't need to.</P> <P>Some prossible cause for missing license:</P> <P>Did your network interface change? Did you go from wired (LAN) to wireless (WiFi)?<BR />Your license is tied to the MAC address of your network interface.&nbsp;</P> <P>&nbsp;</P> <P>Success!<BR />Luc</P> Wed, 11 Mar 2026 13:30:46 GMT LucMeekes 2026-03-11T13:30:46Z Do I have to update my mathcad , although my license is still valid https://www.ptcusercommunity.com/t5/Mathcad/Do-I-have-to-update-my-mathcad-although-my-license-is-still/m-p/1058116#M220699 <DIV class="">&nbsp;</DIV><P>Hi there</P><P>I got this screen when I open Mathcad. what should I do to get rid of it ? my license is still valid to 2027</P><DIV class="">&nbsp;</DIV><DIV class="">&nbsp;</DIV><P>Regards,</P><P>Yusra</P> Wed, 11 Mar 2026 09:41:58 GMT https://www.ptcusercommunity.com/t5/Mathcad/Do-I-have-to-update-my-mathcad-although-my-license-is-still/m-p/1058116#M220699 YA_10963798 2026-03-11T09:41:58Z Re: Do I have to update my mathcad , although my license is still valid https://www.ptcusercommunity.com/t5/Mathcad/Do-I-have-to-update-my-mathcad-although-my-license-is-still/m-p/1058169#M220702 <P>If your license is valid throughout the rest of this year, you shouldn't need to.</P> <P>Some prossible cause for missing license:</P> <P>Did your network interface change? Did you go from wired (LAN) to wireless (WiFi)?<BR />Your license is tied to the MAC address of your network interface.&nbsp;</P> <P>&nbsp;</P> <P>Success!<BR />Luc</P> Wed, 11 Mar 2026 13:30:46 GMT https://www.ptcusercommunity.com/t5/Mathcad/Do-I-have-to-update-my-mathcad-although-my-license-is-still/m-p/1058169#M220702 LucMeekes 2026-03-11T13:30:46Z