If you are using Symantec/Verisign certificate and getting errors around last quarter of 2015 then it is the result incorrect certificate chain.

This can be fixed in the following ways.
1. Obtain the intermediate certificate “VeriSign Class 3 Public Primary Certification Authority” from Symantec and import it to the “Intermediate Certification Authorities” Store.
2. Also obtain the root “Versign Class 3 Public Primary Certification – G5” certificate from Symantec and import it to the “Trusted Root Certification Authority” Store.

OR

There is also an alternate solution available, which suggests de-activating of automatic certification updates, and importing the above certificates.

There are pros and cons of each method. So please choose the solution which suits you the best.