Following the update to Web Security Service (WSS) in November 2017, WSS requires a specific set of criteria to integrate it with Management Center (MC). Previous WSS/MC integrations are invalidated by this change.
When integrating WSS and MC in the current system, the only permitted username is mc-register, and the password for the service is generated as a token in the WSS portal. This article details the steps to configure WSS and MC integration.
This configuration takes place in two parts - Configure WSS to expect a connection from the Management Center using a unique token and configure Management Center to use that token.
Web Security Service Portal
Reference Register Your WSS Portal for initial configuration.