Works on Linux and Windows XP (after enabling Remote Control in Impress General options AND allowing program to communicate through firewall) and is awesome. However  for Windows 7 and 8 laptops  this app fails to finds computers or unable to connect to specific IPs on the network; always reports """"""""""""""""Connection failed"""""""""""""""". Tried app on iPad mini as well as Android 4.4 cell. Tried disabling firewall altogether in Windows 7 and Windows 8 machines and even specifying the IP address of the computer running Impress but the app still can't find the computer! Great app but not workable for me in Windows 7 or 8. Running LibreOffice 5.1.3 on Windows. Does anyone running Windows 7 or 8 have the same problem? anyone with a solution? Need it to work on Windows 7 or 8!!!""