Mediaportal PVR addon not connecting

Hello all,

I’ve recently installed Windows 10 x64 and now cannot connect to Mediaportal TV server, Error is ‘No PVR clients have been started yet, Wait for the PVR clients to start up’ yet everything worked fine under Win 7 x32. The plugin is enabled in MP TV server config and Windows firewall is disabled. I would be grateful if someone could help narrow down where to start looking as it seems to me the problem could be either end.

OSMC 2016.05-1 running Kodi 16.1 (Rpi2)
Window 10 x64 running MP 1.15

Thanks in advance…