it boots again, no issues with that, but the tool doesn't go on, also I have tried anyway after a while to look for the watch in the wearable app but it says that it needs to be reset
Probably, you did not allow debugging in the watch when re-entering the IP.
Do the process again, and when the watch restarts, enter the IP in the tool, a notification will come up in the watch, select "Always allow from this computer".