When using my SSL certificate from Verisign, then the web browser complains that the parent certificate expired. Do I need a new certificate?
No, your certifificate is most likely fine. The problem is that Verisign’s so called Intermediate CA Certificate is preinstalled on many webservers and that preinstalled intermiediate certificate expired. • ISAPI / DSO You need to follow Verisign’s instruction how to update your web server’s certificate: https://www.verisign.com/support/ssl-certificates-support/page_dev028341.html • Standalone Follow the instructions supplied by Verisign how to obtain the correct parrent certificate and save it as root.pem file as show in IW’s SSL documentation. Alternatively just get the latest Intermediate CA Certificate from here: http://www.verisign.com/support/install2/intermediate.html. Copy it to the clipboard and save it as root.pem (It’s already in the correct format).