mongoose部署问题

我试图通过Expressjs连接到Mongolab。 但是当我运行时，我无法连接到服务器

错误信息 ：

MongoError: failed to connect to server [ds033066.mlab.com:33066] on first con nect [MongoError: connect ETIMEDOUT 54.80.215.206:33066] at Pool.<anonymous> (C:\Users\rkishore\Documents\node\node_modules\mongoose\ node_modules\mongodb-core\lib\topologies\server.js:328:35) at emitOne (events.js:96:13) at Pool.emit (events.js:188:7) at Connection.<anonymous> (C:\Users\rkishore\Documents\node\node_modules\mon goose\node_modules\mongodb-core\lib\connection\pool.js:280:12) at Connection.g (events.js:292:16) at emitTwo (events.js:106:13) at Connection.emit (events.js:191:7) at Socket.<anonymous> (C:\Users\rkishore\Documents\node\node_modules\mongoos e\node_modules\mongodb-core\lib\connection\connection.js:177:49) at Socket.g (events.js:292:16) at emitOne (events.js:96:13) at Socket.emit (events.js:188:7) at emitErrorNT (net.js:1277:8) at _combinedTickCallback (internal/process/next_tick.js:80:11) at process._tickCallback (internal/process/next_tick.js:104:9) name: 'MongoError', message: 'failed to connect to server [ds033066.mlab.com:33066] on first conne ct [MongoError: connect ETIMEDOUT 54.80.215.206:33066]' 

任何帮助/build议不胜感激。