Fatal error: Uncaught MongoDB\Driver\Exception\ConnectionTimeoutException: No suitable servers found (`serverSelectionTryOnce` set): [connection refused calling ismaster on '192.168.0.101:27017'] [connection refused calling ismaster on '192.168.0.102:27017'] [connection refused calling ismaster on 'mongors2:27017'] [connection refused calling ismaster on 'mongors3:27017'] in /var/www/braccialini/vendor/mongodb/mongodb/src/Database.php:341 Stack trace: #0 /var/www/braccialini/vendor/mongodb/mongodb/src/Database.php(341): MongoDB\Driver\Manager->selectServer(Object(MongoDB\Driver\ReadPreference)) #1 /var/www/braccialini/core/DbMongo.php(19): MongoDB\Database->listCollections() #2 /var/www/braccialini/vendor/mikecao/flight/flight/core/Loader.php(127): core\DbMongo->__construct(Array) #3 /var/www/braccialini/vendor/mikecao/flight/flight/core/Loader.php(81): flight\core\Loader->newInstance('core\\DbMongo', Array) #4 /var/www/braccialini/vendor/mikecao/flight/flight/Engine.php(101): flight\core\Loader->load('dbMongo', true) #5 in /var/www/braccialini/vendor/mongodb/mongodb/src/Database.php on line 341