Problem

-- Seem only effect VLTrader (Cleo Lexicomm)
-- Files of 1 MB or larger fail
-- Message in the te logs: "SSHConnection closed on socket write: null" (no error)

Resolution

*Problem could not be reproduced using other commonly used clients (tested with Filezilla, WINscp, commandline sftp)

Have the client set the max block size to 32767