Thanks for all the nice posts ppl
I would just like take a sec to remind people that they still need
to configure their servers correctly for people to be able to join.
I see alot of people trying to host servers without for example
forwarding the udp ports needed for it to work. In this case
the master server will add the server to the list (you can see it as
a dead server if you uncheck/re-check the "dead" checkbox in u2xmp),
but noone can join it if it can't be queried via UDP by the u2xmp client.
For information about how to host a u2xmp server go:
here
If you think you have setup everything correctly and you still have
problems, please join #xmpms at quakenet.org and let me know.
/omen