Hello
Just to clarify, I ran a virus/malware scan just as a precaution, in case my PC was infected with something, all the scans came up as being clean (Bitdefender, Emsisoft and Malwarebytes) so it wasn’t malware that was the problem.
I suspect the fix was probably the combination of a carrying out a DNS flush and resetting/rebooting my router…
Just glad it’s all finally working 
thanks again…