Thank you to all
This was a combination of things it seems:
* The OR line porting had not completed from copper to fibre which was confusing some systems
* I had a faulty switch on my network giving only 100mbps limited bandwidth
Both are now resolved and happy to report that I even tested at a cool 512mbps today. Long way from my 512kbps green alcatel usb modem ADSL back in the old days
Thanks
M