I think I am close to establishing the connection: I verified whitelisted IPs, removed antivirus but this time:
connecting to: mongodb://cluster0-rsadq.mongodb.net:27017/?compressors=disabled&gssapiServiceName=mongodb
*** It looks like this is a MongoDB Atlas cluster. Please ensure that your IP whitelist allows connections from your network.
2020-06-24T15:45:21.281+0000 E QUERY [js] Error: couldn’t connect to server cluster0-rsadq.mongodb.net:27017, connection attempt failed: HostNotFound: Could not find address for cluster0-rsadq.mongodb.net:27017: SocketException: H�te inconnu. :
connect@src/mongo/shell/mongo.js:341:17
@(connect):2:6
2020-06-24T15:45:21.296+0000 F - [main] exception: connect failed
2020-06-24T15:45:21.296+0000 E - [main] exiting with code 1
I get a Host Not Found error!
By the way thank you for your indications, I learned a lot of concepts by looking up these issues.