Product manual

GFI LanGuard 16 Troubleshooting and support | 247
Issue Encountered Solution/Description
Firewall installed on GFI LanGuard is
blocking connection with target com-
puters
Description
Scanning might slow down or be blocked if a firewall is installed on GFI
LanGuard machine.
Solution
Configure the firewall to allow the following components in outbound
connections:
<..\Program Files\GFI\LanGuard>\*.exe
<..\Program Files\GFI\LanGuard Agent>\*.exe
Note
For more information, refer to http://go.gfi.com/?pageid=LAN_
SetBestPerformance
GFI LanGuard is failing to retrieve work-
group computers when using Enumerate
Computers
Description
GFI LanGuard uses the Windows mechanism to retrieve the machines within
a workgroup. In this mechanism a Master Browser computer will create and
store a list of all computers. In some cases, the Master Browser role can fail
resulting in GFI LanGuard not retrieving computers information.
Note
To solve this issue, refer to http://go.gfi.com/?pageid=LAN_
CannotEnumerate
GFI LanGuard found open ports that
another port scanner found closed
Description
GFI LanGuard uses a different approach than other port scanners to detect
open ports.
Solution
To view the status of a port and determine if the port is closed or opened:
1. Click Start > Programs > Accessories > Command Prompt.
2. Key in netstat –an, and press Enter.
3. The generated list displays all computer active connections.
16.2 Using the Troubleshooter Wizard
The GFI LanGuard troubleshooter wizard is a tool designed to assist you when encountering technical
issues related to GFI LanGuard. Through this wizard, you are able to automatically detect and fix
common issues as well as gather information and logs to send to our technical support team.
To use the Troubleshooter Wizard:
1. Launch the troubleshooting wizard from the Start > Programs > GFI LanGuard 2012 > GFI
LanGuard 2012 Troubleshooter.
2. Click Next in the introduction page.