Unable to connect to remote host: Connection refused

This error message usually means that the connection to the remote host was attempted but the host refused the connection request. This could happen for several reasons such as:

1. The remote host is not running the service you are trying to connect to.
2. The port on the remote host that you are trying to connect to is blocked by a firewall.
3. The remote host is experiencing network connectivity issues.

To troubleshoot this issue, you can try the following steps:

1. Verify that the remote host is running the service you are trying to connect to.
2. Check if there is any firewall blocking the port you are trying to connect to.
3. Try connecting to a different port on the remote host to see if the issue persists.
4. Verify that the remote host is reachable over the network by pinging it.
5. Contact the system administrator of the remote host to see if there are any known network issues.