Issue with connecting over bolt

I am trying to setup Neo4J community edition in EC2 . OS is RHEL 7. Unable to connect after login . It says

FF : Firefox can’t establish a connection to the server at wss://:7687/.
Chrome : WebSocket connection to 'wss://:7687/' failed: Establishing a tunnel via proxy server failed.

Below is my configuration :

Created certificates using OpenSSL. Here are he configurations

dbms.default_listen_address=0.0.0.0

dbms.default_advertised_address= à Please note that there is no connectivity issue with private IP as I can open the browser and login with neo4j/neo4j credentials.

dbms.connector.bolt.enabled=true

dbms.connector.bolt.tls_level=OPTIONAL

dbms.connector.bolt.listen_address=0.0.0.0:7687

#dbms.connector.http.enabled=true

#dbms.connector.http.listen_address=0.0.0.0:7474

HTTPS Connector. There can be zero or one HTTPS connectors.

dbms.connector.https.enabled=true

dbms.connector.https.listen_address=0.0.0.0:7473

Number of Neo4j worker threads.

#dbms.threads.worker_count=

Bolt SSL configuration

dbms.ssl.policy.bolt.enabled=true

dbms.ssl.policy.bolt.base_directory=certificates/bolt

dbms.ssl.policy.bolt.private_key=server.key

dbms.ssl.policy.bolt.public_certificate=server.crt

Https SSL configuration

dbms.ssl.policy.https.enabled=true

dbms.ssl.policy.https.base_directory=certificates/https

dbms.ssl.policy.https.private_key=server.key

dbms.ssl.policy.https.public_certificate=server.crt

Hi @smaz19584, did you check the port if accessible using telnet from your command prompt ?