Lesson 1 using Google Cloud VM( step by step installation with shell script)

Hi all, I have tried the update script and at the end I am told to:

Copy/paste this URL into your browser when you connect for the first time,
to login with a token:
http://localhost:8888/?token=a06bfxcf2j4ndknjfnkf&token=dfggdgfdgrdhjsnsjskns

I copied and pasted the link to a browser, however, I could not connect to the VM . In the last iterations I was asked to connect to a real ip with 8888 port. Does anybody know how to revert back to that option.
Thanks