Merci, GregorK. I deleted the .phex folder and Phex restart with 32 UP and 31 leaves settings. (Phex should really use the preferences folder like other os x apps @ /users/youruser/library/preferences, and not make the perfs folder invisible: a folder with named .phex is invisible on os x).
I also got leaves (I tested with home Gnucleus leave). Weird thing is that I have a LW 4.0.5 leave.... Those are supposed to connect ONLY to LW UPs
PS: any way Phex could tell the user it is firewalled?
Ciao