sisense.cloudstation.eu-central-1.prod.hydra.sophos.com - Server did not respond to client hello

Our Endpoints try to access this server frequently and the firewall log is full with errors due to the server not responding. I non't know by which component.

Some requests are successful though.

Can you please check if the server has a problem that can be fixed so the logs here do not flood unnecessary?

Checking netstat it seems the browsers, chrome, firefox initiate a connection to that URL also. What is that URL used for?