I have an SFTP server running on a linux server that uses certificate based authentication.
Quite often when I start WINSCP it appears to login OK but hangs without displaying the directory windows. I have to terminate the process and restart the program several times before it runs OK. Once its running it is fine.
I have attached a copy of a working and failing log file (both slightly sanitized).
I'm pretty sure this didn't happen with an older version - but not sure which.
Remote host is Freesco running opensshd 3.7.1
Local is running XP + SP3 + all updates.
It's worth mentioning that PUTTY never has a problem logging in using the same method.