If your environment is sitting behind a Proxy, from 8.4.10 onwards, you can configure Proxy Settings in Altaro VM Backup.
If you're behind a Proxy, in order to be able to add your installation to the Cloud Management Console (CMC), access LiveChat and the Check for Updates option, you must configure this option.
You can access the option from the [Settings] menu in the top right hand corner:
Then a window will pop-up allowing you to select your Proxy Settings:
IMPORTANT: The following 3 URLs must also be added to your proxy bypass list. Meanin traffic to the following URLs should be configured to bypass your proxy: