I'm receiving the following error message when trying to connect with on of our clients and I can not figure out why. Any ideas on what could be causing this? Thanks.
Rebex.Net.SftpException: Negotiation failed. Disconnected by the server ('The Transport Protocol thread failed:java.lang.NullPointerException'). ---> Rebex.Net.SshException: Disconnected by the server ('The Transport Protocol thread failed:java.lang.NullPointerException').
at Rebex.Net.SshSession.SON[D,N](FCW`2 D, Int32 N, MCW T, N O, D J, D L)
at Rebex.Net.SshSession.SON[D,N](FCW`2 D, N N)
at Rebex.Net.SshSession.TWN(HCW D)
at Rebex.Net.GCW.A(SshSession D, Byte[] N, Byte[] T, Byte[] O, Byte[] J, JCW& L, Byte[]& A, SshPublicKey& V)
at Rebex.Net.SshSession.LWN(Byte[] D)
at Rebex.Net.SshSession.Negotiate()
at Rebex.Net.Sftp.VFW.LWN(FEW D, Boolean N)
at Rebex.Net.Sftp.FH(String D, Int32 N, SshParameters T, FEW O)
--- End of inner exception stack trace ---
at Rebex.Net.Sftp.FH(String D, Int32 N, SshParameters T, FEW O)
at Rebex.Net.Sftp.GM(String D, Int32 N, SshParameters T)
at Rebex.Net.Sftp.Connect(String serverName, Int32 serverPort)