Attempts to access Symantec WSS (Web Security Service) from any country subject to U.S. Government-imposed embargos fail. In addition, attempts to access web content within any embargoed country via WSS will fail.
This behavior is by design. Symantec blocks all outgoing and incoming traffic to and from embargoed countries as outlined on Symantec’s export compliance portal: https://www.symantec.com/about/legal/export-compliance
Symantec WSS can only be accessed while located outside of embargoed countries. Accessing content within an embargoed country must be done without using Symantec WSS.