you say (public side) "set up the IP address correctly in windows"... the PC is getting its IP address from DHCP off the router (your docs say it can be fixed or dhcp) there isn't any IP to be set up ...
Hi from sunny South Africa.
Even though I have been in I.T. support for 19 years I just don't *exactly* understand your instructions for thr trial of Firstspot v4.0.13