DALnet has been lately had some problem with attacks to it's servers... the irc.dal.net server pool isn't allways availiable anymore... the last weeks you might get connected to broadway-e.* from irc.dal.net but since DALnet is still attacked in smaller packets broadway-e.* is not lalways up...
You can find a updated list of server at the DALnet website
here either check
THIS page witch has a hourly updated list of servers witch work