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I'm getting an error on requesting free license when installing Mathcad 15, after just installing Mathcad Prime. I'm using windows 10. When acquiring the license in the last step a box pops up-Unexpected error
The server committed a protocol violation.
Section=ResponseHeader Detail=CR must be followed by LF.
Open a new case by using "Mathcad Installation & Licensing Support Center": https://support.ptc.com/support/mathcad_supportCenter.htm
Have you tried pointing 15 at the Prime license? The same license works for both.
"Error "The server committed a protocol violation. Section=ResponseHeader Detail=CR must be ......"": https://community.ptc.com/t5/PTC-Mathcad-Installation/Error-quot-The-server-committed-a-protocol-violation-Section/td-p/706423