Overview

When deploying an agent or agents, the following error is displayed in the deployment history:

Failed to contact remote computer. Computer might be offline...

Environment

Network configuration issues prevent GFI EndPointSecurity from resolving IP addresses correctly.

From the GFI EndPointSecurity machine, ping the computer by hostname and take note of the IP Address returned.
On the target computer, determine the current IP Address using the ipconfig command.
If the two IP addresses do not match, this is the source of the issue. Try the following:
- From the GFI EndPointSecurity machine's command prompt, run the command: Nslookup <Target_Computer_Name> and see if the returned IP address matches the IP Address returned in step #2 above. If the IP Addresses are different, it is confirmed that the local DNS server does not have the correct IP Address registered for the target machine.
To address this, run the following commands on the target machine:

ipconfig /release

ipconfig /renew

ipconfig /registerdns

Notes:

Any errors in the registerdns process may take up to 15 minutes to show up in the client computer's Event Log.
If #3 fails to fix the issue, troubleshoot the issue of DNS / DHCP registrations on your network.