The method of verifying connectivity may differ depending on your operating system, please follow the appropriate heading below for your OS:

1. Use curl from a desktop in your working network environment. 

curl  https://<dbid>.databases.neo4j.io

2. On Linux or MacOS, use nc commands on one of your desktops in your working network, and make sure you get a successful response for all commands

nc -vz <dbid>.databases.neo4j.io 443
nc -vz <dbid>.databases.neo4j.io 7687
nc -vz <dbid>.databases.neo4j.io 7474

3. On Linux run

(echo > "/dev/tcp/www.neo4j.com/80"") >/dev/null 2>&1 && echo "CAN CONNECT" || echo "CANNOT CONNECT"

and replace www.neo4j.com and 80 above with the hostname/port combination you are trying to validate connectivity to.   If connection is possible said command should return CAN CONNECT

 

4. On Windows, you can get Netcat here (https://nmap.org/download.html ) or use PowerShell

Test-NetConnection <dbid>.databases.neo4j.io -Port 7687
Test-NetConnection <dbid>.databases.neo4j.io -Port 7474
Test-NetConnection <dbid>.databases.neo4j.io -Port 443