RDC is not working on specific machine

[AzzKickr]

For the life of me I cannot figure this one out

So I'm a real geek running multiple machines at home. 2x 8.1x64s, 2x Vistas and a 7x64 Ultimate machine.

I can RDC to all, with exception of the 7 machine. Of course that machine is the one I definitely need remote access too...
So the error I'm getting is the general "can't connect". The machine and its shares are viewable and accessible in the network, firewall is disabled.
I installed the RDWrapper from Github, same result. The supplied checking tool comes back with a "socket connection error" ?
I tried everything I can think of. Should I be looking at uninstalling a particular update ?
I also tried giving it a fixed internal IP address.

Thx in advance gurus

 

[AzzKickr]

Never mind. Somehow it fixed itself. I had about 94 updates pending. After applying all of them and fully updating the Windows installation, it worked straight away.