NeoLoad cannot connect to a Load Generator running on a Windows XP or Windows Vista host.
From Service Pack 2 onwards, Windows XP features a firewall which is enabled by default. If the Load Generator is run as a Windows service, Windows Firewall does not prompt the user to add the program to the exceptions list. For more information, see Use a firewall between the Controller and a Load Generator.
Another possible issue can be a Controller-Load Generator connection timeout caused by an antivirus. If the Load Generator machine antivirus is scanning all NeoLoad JAR files, this operation can take a minute or more to complete. To resolve the problem, it is necessary to add JAR files (
.jar extension) to the antivirus exclusion list.