Tor problem with Captive portals and Wifi Hot Spots (TOR/Bridges blocked only works with externel VPN tunneling using UDP port 53)
The first problem when Tor Browser starts can not setup allowed ports. If Tor are blocked the browser does not start where ports can be configured. The other problem bridges are not working. Using a VPN with port 53 and UDP tunneling through DNS TOR are working but slow and limited. If it fails to connect not trying bridges other ports and protocols the program. For less knowledgeable users this is not good.
Tested services with TOR:
With Open VPN
Using a UDP tunnel with port 53 tor are working. It could be integrated into a bridge which is known in protocols try to connect to the internet 53 DNS, 137 netbios, 67 DHCP. In mobile devices, laptops are becoming more widespread the open wifi networks. There is a working protocol that the tor cannot do, it should just be integrated. It would be useful for a lot of people if that worked by default. Solving the problem would help spread the TOR software widely.