So, trying to mount a network drive on my local network via CMD low and behold, I get the error 53. I spoke to my ISP, they don't block any port 445's, so I went to unblock TCP port 445 from my Windows Defender Firewall Advanced Settings - as illustrated - and not surprisingly it still wouldn't have it.
Looking on the CMD Window, you can see that port 445 is still "Listening" and not "Established" like it should be.
I'm sorry but if I unblock a port then I expect it to be unblocked - I dont expect my system to develop a mind of it's own and decide to go against my wishes.
Any other ideas as to why this could be?