Symantec Protection for Sharepoint Servers (SPSS) will not start when it has no access to the URL "crl.verisign.net".
Certificate Verification List (CRL) verification is requirement for any signed .Net application, as SPSS is also using signing, it’s a requirement for SPSS as well.
As a workaround please disable CRL verification per the following steps:
If above procedure does not resolve the issue then please try the following steps:
Add the <runtime><generatePublisherEvidence enabled="false"/></runtime> tag as shown in below code-snippet.