edit: after a 1.4go file transfer , ps3ftp stop connection , and now every time i start the app , i can see xternal/libsre.sprx on ip address. need to reboot the ps3
Use Filezilla if you are not already. Click on File-->site manager put in ps3 address, port 21. Logon type Normal. Use FTPD12345 as user and input anything for password. Then click on transfer settings (within site manager), select active box, and check limit number of connections...should already be 1 (this is key). Connect and away u go.
When connection times out, you do not have to reboot or exit ps3 ftp program just hit run start again. It should not timeout anymore when u set up filezilla with the above settings.
really great tool, works well and I get really fast transfer speeds using FileZilla with your recommended settings. One thing that bugs me though is that I can't quit the program in a normal fashion, no matter what I do upfront. When I try to stop the service, the PS3 freezes, same result when I try to exit the program via xmb, even when I try to just shut down the PS3, it will always take longer than normal to shut down and gives 3 beeps.
Is that normal behavior for everyone, since you mention it is still very buggy, or is there some kind of settings I could try to prevent that? Using FW 3.41 of course and like I said, using FileZilla with the settings (active mode, 1 connection) you mentioned.