Originally Posted by
peter1962
Make sure that the tablet DNS settings are 'use network provided'. I have had instances where public wifi didn't like my use of external DNS
I think it needs to use the wifi's DNS to get to the captive portal, once you're "logged in" you can set it back to your own DNS server.
Doing this on my Macbook which I use for travel is annoying, but this thread prompted me to google for an easy way to do it, so thanks for posting