So the engineer is booked for next thursday the 3rd & I'm wondering if it's ok just to set up the hh3 myself when it arrives instead of leaving it for him to do, as in putting it where I want it which will be very close to the master socket & connecting the power cable & ethernet cable from the hh3 to my solwise homeplug which I'll be using to send the connection around the house. I don't see the point in leaving it for the engineer to do when I could do it myself.
I set mine up before the service went live as I had a quite complicated port forwarding setup and I didnt want to cause any disruption to my services when the service went live. In my case I was also changing the IP addres of the device, and while this had no practical consequences, it did mean that the FOn service never went live on my box, even after I activated it online. This was actually a blessing to me, but would depend on yor perspective!