Thanks for the reply. Turns out it’s all working now with the new duet board! I expected the card to mount and run the runonce.g for the network settings. When it didn’t assumed same issue. However did some Googling and found that file doesn’t work (?) so programmed the network the usual way through YAT. Now all working perfectly.
Thanks for all the help. Now I have to tackle the layer shift problem it’s got. No successful prints yet. Does the duet need active cooling?