This should help you get back to English!
http://www.gnutellaforums.com/showth...329#post164329

Configuring your firewall shouldn't have had anything to do with the language changing. Read through the sticky at the top of this page, the first part "...check here first". Do the port test within that sticky & see what result you get. Firewall probs can be caused by internal firewalls within modems/routers, there's a lot of info within the sticky. If you don't have any joy, post your details

OS(Win XP etc)
LW & Java version (help > about LW & you'll see)
Firewall you're using
Modem/router brand & model
ISP
Connection type (DSL etc)
Where you connect from (home, school etc)
Are you sharing a connection with other computers
Is this your first try with LW