Your client isn't able to connect to the HIVE server (it results in a time out), that's why the game skips registration/login
Unfortunately it's difficult to tell what's going on there exactly. Obviously you can ping the HIVE server and also send queries via HTTPS (i.e. you can query the server list), but for some reason you run into a timeout when trying to connect to the HIVE...
It's also strange that you cannot query the servers in the server browser, instead you get a timeout for most (all?) servers
Contrary to the serverlist query, the individual server queries just use HTTP instead of HTTPS. Maybe something blocks the connection. Although this issue isn't necessarily related to the original problem, since the individual server list queries have a very strict timeout (1000ms).
Is there maybe something blocking or using the HIVE port (6001)? Or anything else that blocks Java?