hi everyone, when i connect Sandbox Cluster from Compass according to chapter guidlines,
then every time my Authentication failed
May be you are giving wrong password
Please double check or empty spaces/junk characters when pasting the password could be the cause
all is correct but this is not gona work
I am able to connect to your cluster thru compass successfully
Please change your replica set name to Sandbox0-shard-0
It should work
Hi @gurmeet_10753,
In addition to @Ramachandra_37567,
I am able to connect to your cluster from Compass.
Authentication failed error means you are entering a wrong combination of the username and password. Please ensure that there are not any blank space or junk characters present in the username and password.
If the issue still persists, please feel free to get back to us.
Happy Learning 
Thanks,
Shubham Ranjan
Curriculum Support Engineer