tFTPConnection_1 : Algorithm negotiation fail

[Anonymous]

Hello everyone,
Here is my problem : I had a job that worked very well and that would get me my files on a remote server. But since they changed their FTP for SFTP I have this error that appears.
"Exception in component tFTPConnection_1
com.jcraft.jsch.JSchException: Algorithm negotiation fail
    at com.jcraft.jsch.Session.receive_kexinit(Session.java:529)
    at com.jcraft.jsch.Session.connect(Session.java:291)
    at com.jcraft.jsch.Session.connect(Session.java:154)
    at projectname.import_ftp_acf_wc_ong_v1_0_1.import_FTP_ACF_WC_ONG_V1.tFTPConnection_1Process(import_FTP_ACF_WC_ONG_V1.java:1139)
    at projectname.import_ftp_acf_wc_ong_v1_0_1.import_FTP_ACF_WC_ONG_V1$3.run(import_FTP_ACF_WC_ONG_V1.java:9552)"
I can connect with WinSCP on the server so my IDs are good.
I am new at Talend, I have no idea how to remedy that.
Thank you for your help.
PS: Sorry for my poor english

[Anonymous]

Hi,
Have you checked out "SFTP support" on tFTPConnection component? There is no network issue on your end? Can you connect your changed remote server through other tools successfully without using talend tool?
Best regards
Sabrina

[Anonymous]

Hello,
Yes, the "SFTP support" is checked and i connect my changed remote server with Winscp to get my remote files manually.
Cordially

[Anonymous]

Hello,
Try to upgrade the library jsch.jar in TOS_DI-20141024_1545-V5.6.0\configuration\lib\java to the latest version(jsch-0.1.53.zip and rename it to jsch.jar) that you can get from  jcraft.com/jsch/, restart talend and execute your job.
Regards,
Amine

[_AnonymousUser]

Hello, I'm facing the same issue
dase the tFTPconnection in talend support :
 - KexAlgorithms  diffie-hellman-group-exchange-sha256
 - MACs  hmac-sha2-512,hmac-sha2-256
 - Ciphers  aes256-ctr,aes192-ctr,aes128-ctr

and yep, "SFTP support" is selected. 
i'm using private key with key Passphrase.

Thanks.

[Anonymous]

Hi

I had the same issue using TOS 6.1 to connect to a FTP with implicit TLS.

I had the sftp support checked.

Following this thread, I downloaded jsch-0.1.55, copied it into D:\Talend\TOS_DI-20151214_1327-V6.1.1\workspace\.Java\lib and renamed it jsch-0.1.51.jar. After restzrting the studio, same issue.

I then copied it to D:\Talend\TOS_DI-20151214_1327-V6.1.1\configuration\.m2\repository\org\talend\libraries\jsch-0.1.51\6.0.0-SNAPSHOT to replace the existing jsch-0.1.51-6.0.0-SNAPSHOT.jar

It now works after restarting the studio

Hope it helps !