The cables are used but only fitted over the weekend, will try a change as well as the box swap, thank you. I’ve just tried stuff now, on demand, apps etc are as quick as downstairs, same with watching recorded content. However, playing programmes from the downstairs box are still slow and a bit sticky.
If it matters, the Network status mirrors each other and both say ‘Wired Ethernet adapter. All the addresses and masks match except fir the MAC ID and the IP addresses, upstairs says 192.168.0.34 downstairs 192.168.0.28, does this matter?