Method 1
If you have Telnet installed, you can use:
Start Menu > telnet
o data.deepspacesync.com 3306
You should receive a response that looks something like this:
Method 2
You may also try to check that a direct connection is allowed to Deep Space using this command in PowerShell:
Test-NetConnection -ComputerName data.deepspacesync.com -Port 3306
If this responds with TcpTestSucceeded: False, then you need to:
Allow Port 3306 through the Firewall to this PC
Ensure there is no TCP blocking to the data.deepspacesync.com URL
Method 3
You can also try using psping.
Download psping
Start a Command Prompt at that location
Use this command:
psping data.deepspacesync.com 3306
You should receive response like:
Method 4
Sometimes, a VPN connection will block access to Deep Space. Try disconnecting your VPN to see if connectivity to Deep Space is restored.