Having the update issue with a new watch

I just purchased a new Apple Watch series 3 and when I started the pairing process it tells me to install The update. When I go to install the update I’m fully connected to wifi and it downloads and gets to the preparing stage and then only loads to a certain point. I have tried two different wifi connections in different locations. Also resetting my network settings millions of times. Manual pairing and the standard way. I cannot get any further than this point in the photo attached. I’ve followed all of the instructions please help!!!