I do not believe all the instructions above cover all eventualities - there is something missing…
In my case I followed all instructions to the letter - and got “no Connection” - i.e the iPad iC Pro app could not see my computer at all .
Ok so then I went through all the obvious steps like re-booting the PC and the Ipad, reinstalling ROTSKI, checking Bonjour is installed and working, checking both devices IP addresses (yes they were on the same network segment), checking the firewall ports and permissions (in Win 7 Pro 64) and my wireless router - all is exactly as it should be. Even tried turning off the firewall etc. Still no good.
The last thing I did was to uninstall ITunes completely (I was actually running the latest version anyway and it was working fine). After reinstalling ITunes everything just started to work fine in every respect - iC Pro on the IPad instantly saw my PC and instantly connected. Its been good ever since - well, for the last 24 hrs anyway
I am not necessarily saying you HAVE to reinstall ITunes to get this to work - but clearly something was not corrrect and the re-installation MIGHT have fixed it somehow.
Anyway IC Pro it is working now - and I love it so far!