Upload OR Download Problem?

[câin]

I have a problem about my upload..or maybe it's a problem with the downloader's download

I created a private torrent without tracker, added my buddies IP:Port into the peer list and soon he started to download. But even if my upload was set to 60kb/s(or unlimited, it didn't matter) he only was able to download with 30kb/s. After i created a VPN tunnel between the pc's and added both (VPN & ISP) IP adresses he was able to download with 30kb/s from each IP.

I thought it might be my mistake/pc problem, so i tried another PC with dedicated line, and he could also only download there with 30kb/s...

Downloader used µTorrent1700, and I tried 1600 and 1610 for Upload.

Can anyone give me a hint about this?

Thanks

[Ultima]

What is your friend's upload limit set to?

[câin]

He tried several settings (30, 60, unlimited) but as there were no other leechers, he wasn't uploading.