When accessing the console in web browser E.g https://console-redis.sys.domain.com/login", it shows "526 Invalid SSL Certificate"
This happens because the Redis Server Certificate is self-signed and is not trusted by the gorouter.
Adding the Redis server certificate in Bosh director Tile -> Security -> Trusted certs should solve the issue. This will propagate it to the BOSH-deployed VMs (such as routers). This means that all VMs managed by BOSH will have the trusted certificate installed, and they'll succeed on securely communicate with Redis server.