SFTP-connector only works when the timeout value is set to an value <10s.

Question

• It seems that here the firewall blocks the ACK for SSH
• setting the sftp timeout to an lower value as the default SSH timeout (mostly set to 10) this is closing connection and works then
• But when i set to 30 seconds, It doesnot work.
• What or why sftp behaves like this for 10 seconds and 30 seconds configured.

Answer 1

I've never heard of a firewall blocking an SSH message. A debug log file might tell us more.