Is it common for Tor browser not to connect when using public WIFI? For example a Starbucks WIFI that requires you to "accept" their access agreement.
Yes. You need your browser to connect to local network and Accept, before you (that is, Tor) is allowed to make any connection to Internet.
Proper sequence would be:
- Connect to cafe's network from your OS
- Open non-Tor browser
- Accept terms, introduce login, etc.
- Close non-Tor browser (unless it specifically says not to close the connection window/tab)
- Open Tor