Different redis servers for cache and queue

Hi,

Horizon shows me the "Inactive state" trying to use two different redis servers for cache and queue.

In the config/database.php configuration file there are already various redis connections for each specific service:

        'default' => [
            'host' => env('REDIS_HOST', '127.0.0.1'),
            'password' => env('REDIS_PASSWORD', null),
            'port' => env('REDIS_PORT', 6379),
            'database' => env('REDIS_DB', 0),
        ],

        'cache' => [
            'host' => env('REDIS_HOST', '127.0.0.1'),
            'password' => env('REDIS_PASSWORD', null),
            'port' => env('REDIS_CACHE_PORT', 6379),
            'database' => env('REDIS_CACHE_DB', 1),
        ],

default connection is used in config/queue.php:

'redis' => [
            'driver' => 'redis',
            'connection' => 'default', // this is the connection used by horizon and the queue system
            'queue' => env('REDIS_QUEUE', 'default'),
            'retry_after' => 120,
            'block_for' => null,
        ],

cache connection is used in config/cache.php:

'redis' => [
            'driver' => 'redis',
            'connection' => 'cache', // this is the connection for the cache service
        ],

In the database connections list I'm trying to change the params of the default connection to point a completely different server that I would like to use only for queue (separated from the redis server used for cache):

        'default' => [
            'host' => 10.157.0.7,
            'password' => null,
            'port' => 6379,
            'database' => env('REDIS_CACHE_DB', 1),
        ],

But horizon shows me the "Inactive" state.

Has anyone ever tried using two different redis installations?

I also trying to connect to the new redis instance by the horizon machine, and It works.