Then you can connect to a server. The connect box automatically remembers servers you've connected to before, and arranges them into networks.
You can choose a network name to make leafChat connect to a random server from that network. If the connection fails, leafChat will try another server from that network. leafChat remembers when connections fail and tries that server less often in future.
You can connect to multiple servers or networks at once. leafChat remembers the setting for next time, so if you always connect to three networks, you can do so with a single click.