Because the LMS discovery mechanism uses the SlimProto protocol to discover the
presence of a Logitech Media server which operates on port 3483/udp and
3483/tcp. But HA uses a different 'CLI' protocol that is typically on port
9090/tcp to query player state.
However the CLI port number is configurable and if someone runs the CLI on a
different port, and has the server configured in configuration.yaml, we get an
error in the logs when we try to connect to 9090/tcp when we find the server
through discovery. Because of the way local slim player discover the server
using SlimProto we can be fairly certain only a single server will run on a
given IP address so if one is already configured with a user defined port, we
should ignore the discovered one that assumes the default port.
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