Issue - Can't log in to activate 30 day trial

[MM_9299914]

While trying to activate the license I came across the following error when attempting to log in... "The server committed a protocol violation. Section=ResponseHeader Detail=CR must be followed by LF"

Is there any solution for this issue?

Please see attachment for error message.

[VladimirN · Accepted solution]

Read this tip - "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