ok i have no idea whats going on now. so please bear with me. i have a home lan. and i am running an ftp server. i got it all set up forwarded port 21 and it was working fine. i just reinstalled my sound card today and when i restarted my computer and tried to conect my ftp server online it gave me this messag "2/23/01 9:13:34 PM SERVER: Unable to start server, port 21 may already be in use." i uninstalled the sound card and restarted and it still keep s doing this. i tried reinstalling my nic card and the protocols and i am still getting that message. i rechecked my router and all the setting s are the same. i even reset it and then forwarded port 21 and nothing. i had my ftp server up and working and i just dont understand this i ve checked my device manager. i even tried to switch the port that my ftp server was listening on and i got the same message with that port as well? i went to www.grc.com and had my ports scanned and port 21 was showing up as closed.ive done a virus scan. im lost here now. so i guess my questions are what can be using port 21 and what program can i use to find this out? also any clues or advice or help would be greatly apreciated. thanks