Our website uses a certificate by GoDaddy and on most computers everything works fine - we can see no errors with the certificate and the information contained within is correct.
Some of our customers keep ringing us to say our certificate is invalid though. Upon inspection it appears the certificate is issued by our servers rDNS address and issued to the same. We have been unable to reproduce this issue.
What could be going on here and how can we resolve it?
See attached screenshots for an idea what I mean...