Problem with Serv-U and LNS 2.05p2

hi i use Serv-U 6.1 to share files through ftp through my home computers (network), anyway i have LNS 2.05p2 installed on the computer which acts as the host (has Serv-U 6.1) installed. when LNS is on it doesn't allow other users to connect to the ftp while is that?
also i have been having problems with games too, i try to play network games and when LNS is on it doesn't allow connecting to the other computer to play.

i did allow the programs when it asked me for internet access, am i missing something or is this just a bug in LNS?

 

I fixed the Serv-U issue by creating a new internet filtering rule:
Rule Name:Whatever u want
Ethernet type: I chose All
Protocol: TCP
Frag offset/flags:All
Ethernet Address: All
Ip:Address:Equals my @
TCP/UDPort:Equals
21 ftp
I left the rest with defaults. I also put this new rule above TCP:Any other packet.

Another (less secure) option would be to turn off (uncheck) internet filtering enabled as you'll still at least have the application blocking..