Problem Networks

if you have issues with rizon.net use irc.rizon.ca or irc.rizon.no (they had some DNS/webirc issues lately)
Freenode blocks all mibbit clients/users
QuakeNet blocks all mibbit clients/users
Undernet allows only 5 mibbitians (the formerly preferred server ircu.krypt.com / 66.186.59.50 allowed 50 mibbit users, but it went down)
GalaxyNet (max 10?)
DALnet (max 25 per server, many of those use the same ip)
most other "not mibbit aware" networks limit the total number of mibbit users to 3..5 (per client)

DALnet

If you get "Too many connections ..."(or similar) try a different server in "Home", "Server":

Asia: hotspeed.sg.as.dal.net

Europe: arcor.de.eu.dal.net , matrix.de.eu.dal.net

US: masters.ix.us.dal.net , novel.fl.us.dal.net , punch.va.us.dal.net , riga-r.ca.us.dal.net , rumble.fl.us.dal.net , swiftco.wa.us.dal.net

If you get connected type /j #desiredChannel