Overview
You may face an issue where some of your EndPointSecurity Agents/Clients are showing the OFFLINE status although their machine is active and online.
For example:
Solution
Follow the steps from the article Failed to contact remote computer. Computer might be offline when deploying a GFI EndPointSecurity agent to solve this issue.
Also, in order to allow GFI EndPointSecurity agents to be properly installed on your network computers from the GFI EndPointSecurity console, ensure you set up your machines according to the requirements in the article: What is required to install the GFI EndPointSecurity Agent on a client machine?