Agent: gRPC conn opened but gRPC RPC is disabled, closing:

Hello.

I am trying to install a watch on one node to check for certain changes in a service. I am getting this error on the masters as well as the following error on the agent:

    2021-08-05T10:19:18.881Z [ERROR] agent: subscribe call failed: err="rpc error: code = Unavailable desc = all SubConns are in TransientFailure, latest connection error: connection closed" topic=ServiceHealth key=rabbitmq-cluster-admin failure_count=12

Unfortunately i cannot find anything about this on google.

Thanks in advance,
Cristian.