If CrashPlan is showing as offline or is not connecting, or has not updated then please restart the following to see if that helps you to be reconnected:
Your computer (not the CrashPlan services the whole computer),
Make sure you do not have any Network or Wifi exclusions set inside CrashPlan or any blocks set by your Internet Service Provider (ISP).
If you are using a content filtering service or firewall on your internet connection i.e. BT Parental Controls you will have to remove the File Sharing Block through BT to allow CrashPlan to connect.
Check that your computer is running the latest version of Java, you can run system update in Apple OSX or in Microsoft Windows.
See if you can view the admin console in your web browser at: https://code42.ceejay.net:4285 if you cannot then there is a firewall blocking access.
Check that your firewall, antivirus or internet provider are not blocking connections required for CrashPlan PROe to run at the following addresses:
Our PROe server address is code42.ceejay.net (IP 184.108.40.206) on port 4282
The best way to whitelist traffic to CrashPlan is to whitelist the following domains and IPs:
The following ports need to be opened for traffic:
4282 (Primary Connection)
4285 (SSL Dashboard Connection)
443 (SSL for Backup Data)
It is vital that you are running CrashPlan in the CeeJay Software Cloud, which is shown at the top right and will display the CeeJay logo, if not please uninstall and install the latest version from www.ceejay.com
If you still fail to connect and have checked all above, double click on the CrashPlan PROe logo in the top right corner, when the CrashPlan software is running on your computer, then type in
Then press enter on your keyboard.