yes you were correct i got it working on port 80
Type net stop HTTP
If there are other running services that depend on the HTTP service, you'll get a list; double check to see if there's anything listed there you can't bear to do without. Or, if you're just stopping HTTP to use port 80 temporarily, make a note of those dependent services that you'll want to restart once you're done with the port. Either way, if it's okay, enter y to continue.
and you were correct it made no difference alexa could still not find ha bridge ..so that me done i think will have to search some more ..but thank for all your help ..if anything have learned a few things