Can you please make sure you are not behind a firewall or using a corporate network (as it might be blocking your ports)?
The connection settings you have used are correct. Would you verify that the port 27017 is not blocked by going to the following URL:
And also try to connect from some other network as well, such as your home network.
If the issue still persists please feel free to get back to us. Happy Learning
Curriculum Support Engineer
I was having the same problem. I restarted the compass software and it started working.