ROR and remote_cluster_client

After installing ROR, another cluster cannot connect to this server, despite the fact that it is registered in the permission

     -name: "XCS-access"
       verbosity: error
       hosts: [""]

The search is terminated by a timeout.

What could be the reason?


Do you have the newest ROR installed?
What about ES version?
Do you see sth in the ES logs?

Surprisingly, overnight the problem disappeared and it began to work. What a magic.