"Certificate cannot be verified up to a trusted cert authority"

[BadBoy House]

Last week I renewed the third party SSL certificate on our SBS 2008 server.

It imported fine without any errors, however since importing the certificate users outside of the network now get the certificate warnings below when attempting to access our server via https://remote.ourdomain.co.uk (to access remote web workplace).

I don't get why it says that the certificate cannot be verified up to a trusted certification authority when it is in fact from a trusted authority (AlphaSSL/GlobalSign).

Internally on the network going to https://remote.ourdomain.co.uk the certificate details display fine and it says "GlobalSign has identified the site".

I'm thinking whether the certificate needs applying in IIS somewhere to the remote site? Just a guess though.

Any ideas? I'm going to remove the certificate and re-add it next but it would be good to establish what the actual problem is.

 

[skdmaster]

You can try this website https://www.sslshopper.com/ssl-checker.html as I have found it helpful on checking certs from the outside to see problems sometimes.

 

[BadBoy House]

You can try this website https://www.sslshopper.com/ssl-checker.html as I have found it helpful on checking certs from the outside to see problems sometimes.

Thanks. V.helpful link.

Turned out to be an issue with the intermediate certificate.