Important note about SSL VPN compatibility for 20.0 MR1 with EoL SFOS versions and UTM9 OS. Learn more in the release notes.

SFTP Clientless Not working at all

Hi,

I am giving up on this,

I have opened a case with sophos but cannot figure out the issue. I have created a clientless VPN sftp for our server. It always gives me 

read: Connection reset by peer

It works perfectly fine with Winscp using the private and public key but when it comes to sophos it is not working. Sophos confirmed there is no drop in traffic which is logic coz it is reaching the server auth logs...but what is the difference betwenen winscp and clientless for the other to work and this not.

I have some logs from ubuntu server but since i am not expert i cannot understand the logs.

This is highly urgent