dont use port 6667 to connect to a network. Most networks have a range of ports, usually within 6660-6669,7000-7001 and you can specify a port with /server some.server.here:7000

connect to the server's ip instead of domain (ie, /server 123.456.789.123 instead of /server some.domain.here)

so lets say i want to connect to 2 networks in chatchanel and grnet through perform.What should i put in chatchannel perform to connect to grnet too? /server darkness.irc.gr:7000(grnet server) or /server grnets ip??

Pls tell me which way u recommend me in order to connect to grnet and how can i see grne's ip?

To find out a server's IP, type /dns irc.whatever.net