SFTP on OS390

[Martin Ferdinand R Magat]

Hello
Anyone knows what is the error below?

debug1: SSH2_MSG_KEX_DH_GEX_REQUEST_OLD received.    
debug1: SSH2_MSG_KEX_DH_GEX_GROUP sent.              
debug1: dh_gen_key: priv key bits set: 190/384.      
debug1: bits set: 1023/2049.                         
debug1: expecting SSH2_MSG_KEX_DH_GEX_INIT.          
Connection closed by 192.168.147.217.                
debug1: Calling cleanup 0xc0b5828(0x0).              
debug1: Calling cleanup 0xc11ad60(0x0).              

note: this was wheni i trying to connect SFTP from PC to openssh ..
thanks