Hi,
I haven't had any successes connecting to my Mongo database and always have this issue

I'm sure I put right Credentials. However, I can't know if my Credentials work or not because I tested with both right and wrong Credentials and the connector always confirm it is connected, and I can't have a list of collections but only manually type it by myself. Then when I run the dataset, the timeout problem always appears.
Can anyone help me with this ?
Thank you.