didn't work, so i put $self->{_debug} = 1; into my sub on_connect.
This worked fine :)

i've got the output and the handlers called:

>>> PRIVMSG #java :blablabla<br>
Handler for 'public' called.<br>
[download]

Then I switched off my modem at the router. My normal IRC Client had a disconnect. But the Net::IRC just runned on without any output.
I tested the whole thing on Linux and Windows(activeperl).
Has anyone an idea for a workaround? :)
greets