I was waiting at line in Starbucks, as is my normal morning routine, and decided to use the local AT&T; Wifi network for a change. It asked me to log in with my phone number, then sent me a text which had a URL I was supposed to click on so I got internet access. Too much hassle. And the service was only for twenty four hours. It wasn't worth it, so I exited, but ... I was stuck. I was attached to the wifi without a connection. I tried deleting it in the settings, but no luck. I had to reboot and get out of range.
It should have just picked up I was an iPhone customer - it is a monopoly in the US and iPhone users must be AT&T; customers - and hence AT&T; user, so just given it to me for free, or sign in once, and then have it at all Starbucks without having to sign in again. I won't be attaching to the local network other than my own in future. It isn't worth it.