Server connection failure using version 3.0.5584.0

Question

Hi

We have been using this version (I guess it's build 5584 from 2015) for few years. Always worked fine. Few days ago we tried to connect to sftp.lumyna.com and it failed. Output of exception ToString() method is given below. Is it possible to find why it's failing?

Rebex.Net.SftpException: Key exchange failed. Requested service is not implemented. ---> Rebex.Net.SshException: Key exchange failed. Requested service is not implemented. ---> Rebex.Net.SshException: Requested service is not implemented.
at Rebex.Net.SshSession.AZ(Byte[] A, Int32 B, Int32 C)
at Rebex.Net.SshSession.ZY(Byte[] A, Int32 B, Int32 C)
at Rebex.Net.SshSession.YY(NGB A, Object[] B)
at Rebex.Net.SshSession.CZ(IGB A)
at Rebex.Net.LGB.D(SshSession A, Byte[] B, Byte[] C, Byte[] D, Byte[] I, Byte[]& J, Byte[]& L, SshPublicKey& M)
at Rebex.Net.SshSession.EZ(Byte[] A)
--- End of inner exception stack trace ---
at Rebex.Net.SshSession.EZ(Byte[] A)
at Rebex.Net.SshSession.DZ()
at Rebex.Net.SshSession.Negotiate()
at Rebex.Net.Sftp.MNB.EZ(XMB A)
at Rebex.Net.Sftp.BN(String A, Int32 B, SshParameters C, XMB D)
--- End of inner exception stack trace ---
at Rebex.Net.Sftp.BN(String A, Int32 B, SshParameters C, XMB D)
at Rebex.Net.Sftp.AN(String A, Int32 B, SshParameters C)
at Rebex.Net.FileTransferClient.Connect(String serverName, Int32 serverPort, FileTransferMode transferMode)

Thanks
PJ

Answer 1

Hi,

This is most likely a known issue when using older versions of Rebex SFTP with contemporary servers. See our answer here for details and a solution:

https://forum.rebex.net/6312/sftpexception-exchange-failed-requested-service-implemented?show=6313#a6313

Comments

Hi Lukas, thank you for the reply. I downloaded latest trial version and it's working.