I cannot download ftp://exftpp.symantec.com/pub/support/products/Backup_Exec_System_Recovery_Server_Edition/304721.pdf by using the FTP proxy (I tried Firefox and Opera, no special FTP client).
The FTP proxy log shows the following lines per each download attempt:
2009:09:03-18:34:31 astaro1 frox[22644]: Connect from 192.168.0.14
2009:09:03-18:34:31 astaro1 frox[22644]: ... to 216.10.195.44()
2009:09:03-18:34:41 astaro1 frox[22644]: Server is sending us a badly formed control stream.
2009:09:03-18:34:41 astaro1 frox[22644]: Closing session
As soon as I try to download it directly (proxy disabled) it works.
Regards,
Bastian