1.)This issue persists despite the antivirus being disabled on all the VMs. There is no firewall between these systems.
2.)Another interesting aspect is that during CHECKVU using a remote load generator the connection is lost at the end of the test with a message that log file is empty and cannot be read.
3.)The green bulb beside the additional load generator sometimes turns red for fraction of second.
4.) All additional load generators as well as controller are on independent Windows 2008 Server R2 .
5.)Please find the attached conf and logs.