node.js mongodb 연결이 안되고 있습니다.

안녕하세요. 
강좌 중에 mongodb 연결 중에 error가 발생합니다. 
오타 있을까봐 계속 봤는데 오타는 없는것 같고요, 한번 봐주세요. 
사용PC : Mac

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const MongoClient = require('mongodb').MongoClient;
MongoClient.connect('mongodb+srv://admin:<qwer1234>@cluster0.nioo7sz.mongodb.net/?retryWrites=true&w=majority', function(에러, client){
if (에러) return console.log(에러);
//서버띄우는 코드 여기로 옮기기
app.listen('8080', function(){
console.log('listening on 8080')
 });
});
=============
에러 메세지 
[nodemon] starting `node server.js`
MongoServerError: bad auth : Authentication failed.
    at Connection.onMessage (/Users/kyuyong/Documents/dev/codingapple_lecture/node_js_lecture/todoapp/node_modules/mongodb/lib/cmap/connection.js:230:30)
    at MessageStream.<anonymous> (/Users/kyuyong/Documents/dev/codingapple_lecture/node_js_lecture/todoapp/node_modules/mongodb/lib/cmap/connection.js:61:60)
    at MessageStream.emit (node:events:513:28)
    at processIncomingData (/Users/kyuyong/Documents/dev/codingapple_lecture/node_js_lecture/todoapp/node_modules/mongodb/lib/cmap/message_stream.js:125:16)
    at MessageStream._write (/Users/kyuyong/Documents/dev/codingapple_lecture/node_js_lecture/todoapp/node_modules/mongodb/lib/cmap/message_stream.js:33:9)
    at writeOrBuffer (node:internal/streams/writable:392:12)
    at _write (node:internal/streams/writable:333:10)
    at Writable.write (node:internal/streams/writable:337:10)
    at TLSSocket.ondata (node:internal/streams/readable:766:22)
    at TLSSocket.emit (node:events:513:28) {
  ok: 0,
  code: 8000,
  codeName: 'AtlasError',
  connectionGeneration: 0,
  [Symbol(errorLabels)]: Set(2) { 'HandshakeError', 'ResetPool' }
}
[nodemon] clean exit - waiting for changes before restart

혹시 몰라서 아이디 비번도 여기서 다시 'qwer1234'로 다시 바꿨는데도 안되네요 ㅠㅠ