Test your network connection

 

PowerShell (Windows only)

PowerShell is a scripting tool for Windows. Windows PowerShell comes installed by default in Windows.

1. In the lower-left corner, click the Windows icon and type: PowerShell
2. At the PowerShell prompt, enter the Test-NetConnection command: Test-NetConnection -ComputerName <address> -Port <port>
   The Code42 app uses port 443 and 4287 to connect to authority servers and the Code42 cloud. If you are unsure which port to include, test all.
   Examples: 
   Test-NetConnection -ComputerName central.crashplan.com -Port 443
Test-NetConnection -ComputerName central.crashplan.com -Port 4287

If the connection passes, a TcpTestSucceeded: True message displays similar to the following:

ComputerName     : central.crashplan.com
RemoteAddress    : 192.0.2.0
RemotePort       : 4287
InterfaceAlias   : Ethernet0 2
SourceAddress    : 192.0.0.0
TcpTestSucceeded : True

If the connection fails, a failure message displays, for example:

WARNING: TCP connect to (192.0.2.0 : 4287) failed

If the connection fails, troubleshoot the failed connection.

Rujukan : https://support.code42.com/CrashPlan/6/Troubleshooting/Test_your_network_connection