Sftp to certain server fails

I need a sftp connection to "rzstud.rz.uni-karlsruhe.de" on port 22.
This fails in DOpus 9.1.x and 9.5.0.0 but the connection works fine in WinSCP and also SSH clients like Putty.

The error message is just "An error occurred reading folder: General error.".

Log says this:
Opening Connection rzstud.rz.uni-karlsruhe.de:22
SSH: Server version: SSH-1.99-OpenSSH_4.3p2 Debian-9etch3
SSH: We claim version: SSH-2.0-PuTTY-FZ-Local: Oct 5 2009 12:24:18
SSH: Using SSH protocol version 2
SSH: Couldn't agree a client-to-server cipher (available: arcfour128,arcfour256,arcfour,aes128-ctr,aes192-ctr,aes256-ctr)
SSH: Fatal: Couldn't agree a client-to-server cipher (available: arcfour128,arcfour256,arcfour,aes128-ctr,aes192-ctr,aes256-ctr)
Connection closed

Is there any way I can make this work? If not, could a fix please be incorporated in the next version?

Sounds similar to this bug in Solaris, though I note the server says it's running Debian.

You should send a support request to GPSoftware with as much detail as you can provide. If it's possible to create a test login for them to use to try to connect to the server then that'll help greatly.

it's not gonna be fixed before the next major release :frowning: