You have successfully downloaded the V6 installation file which looks like: ‘qnet6-master-server-setup-common-mssql-x64-v6.x.xx-xxxx-db28.exe’.
If you do not have the installation files you need, please open a new support ticket with the corresponding topic.
Make sure that the port numbers are enabled on the firewall which are port 3000, 8000 by default.
How to open specified ports on Windows Firewall?
More information about installing Master/Slave server: http://docs.q-net.com/pro6/en/getting-started/installation.html#Q-Net-Queue-Management-System-Pro-V6-Install