We are troubleshooting an issue impacting community login, and it may be intermittently unavailable. Sorry for any inconvenience.
The Quick Installation Guide PDF provided with download instructions for Creo 3.0 University Standard Edition contains a bad link for the download of the DVD image. Getting a 404 error.
https://support.ptc.com/appserver/auth/it/esd/academicFree.jsp
This link works for me.