I have made a MEAN stack project. And this project was successfully run some days ago. But suddenly it gives MongoNetworkError. I do not change anything. I use mongo atlas. The error description is given below.
error MongoNetworkError: failed to connect to server [cluster0-shard-00-01-s9niu.mongodb.net:27017] on first connect [MongoNetworkError: connection 5 to cluster0-shard-00-01-s9niu.mongodb.net:27017 closed
at TLSSocket. (D:\Angular\meal-system-server\node_modules\mongodb\lib\core\connection\connection.js:372:9)
at Object.onceWrapper (events.js:300:26)
at TLSSocket.emit (events.js:210:5)
at net.js:658:12
at TCP.done (_tls_wrap.js:481:7) {
name: 'MongoNetworkError',
}]
at Pool. (D:\Angular\meal-system-server\node_modules\mongodb\lib\core\topologies\server.js:438:11)
at Pool.emit (events.js:210:5)
at D:\Angular\meal-system-server\node_modules\mongodb\lib\core\connection\pool.js:561:14
at D:\Angular\meal-system-server\node_modules\mongodb\lib\core\connection\pool.js:1008:9
at callback (D:\Angular\meal-system-server\node_modules\mongodb\lib\core\connection\connect.js:97:5)
at D:\Angular\meal-system-server\node_modules\mongodb\lib\core\connection\connect.js:124:7
at _callback (D:\Angular\meal-system-server\node_modules\mongodb\lib\core\connection\connect.js:349:5)
at Connection.errorHandler (D:\Angular\meal-system-server\node_modules\mongodb\lib\core\connection\connect.js:365:5)
at Object.onceWrapper (events.js:300:26)
at Connection.emit (events.js:210:5)
at TLSSocket. (D:\Angular\meal-system-server\node_modules\mongodb\lib\core\connection\connection.js:370:12)
at Object.onceWrapper (events.js:300:26)
at TLSSocket.emit (events.js:210:5)
at net.js:658:12
at TCP.done (_tls_wrap.js:481:7) {
name: 'MongoNetworkError',
}
