It will work if you sleep the same IP, my issue is switching computers.
It doesnt always work also, i spent 20 minutes in a lesson a few years ago hitting the recaptcha unchecked button and it didnt let me in (I was on college wifi too so I have no idea what the admins were doing to that network

)...
I would like to add in: If you came from 3rd countries like me, where 1 IP being shared by many users. Then bypass captcha is such a painful thing that you can ever imagine. Because it's a share IP then if someone doing something suspicious, google will mark that spam IP. When you connect to internet throught that IP, you will have to finish traffic light, crossroad, stairs...many many times to pass.