Rather than continue to pollute someone else’s thread I’ll put a shout out for help here.
To summarise - My PC was connected via wifi to my network. I downloaded and installed HQP, just the demo version, set up it up so my headphones were the output via WASAPI, added HQP in Roon and popped in the IP address of my PC which was hosting HQP and all was good. Could play music through my headphones with HQP set as the endpoint. Lovely.
Then my new ethernet cable arrived so I plugged my PC into my router via wired ethernet, created a new HQP endpoint with the new IP address assigned as I was now wired and nothing. Roon just gave the error that it could not start HQP.
I’ve uninstalled HQP, messed around with IP settings, tried to set up Ropieee XL as well just for the shear frustration of it and nothing. I simply cannot get HQP to work anymore since moving to wired ethernet.
Before I give up on the whole thing and just continue as I was with Roon straight to Ropieee am I missing anything obvious?