Hello, My IIS webservice application connects to SFTP using ChilkatVersion: 188.8.131.52 It is able to get the documents however it intermittently fails with following error.
Error:ChilkatLog: Connect_SFtp: DllDate: Dec 5 2014 ChilkatVersion: 184.108.40.206 UnlockPrefix: ******** Username: <user name=""> Architecture: Little Endian; 32-bit Language: .NET 2.0 VerboseLogging: 0 SftpVersion: 0 hostname: <host ip="" address=""> port: 22 Established TCP/IP connection with SSH server clientIdentifier: SSH-2.0-PuTTY_Release_0.63 Sending client identifier... Done sending client identifier. Reading server version... Failed to read initial server version string bytesReceived: Failed. --Connect_SFtp --ChilkatLog
What i am not able to understand is what may cause this error to occur intermittently.
Could this be issue with Chilkat version or something to do with SFTP server.
Alright, i did following test, please see if you can help with this information.
This is the process I am trying to test. My webspplication runs on IIS which calls an SFTP server for some files. This is a webservice called by clients.
When i run this application on Win2k3 server with IIS 6, out of 200 calls i see this exception happening for 6-7 odd times I migrated this application as is on Win2k8 server with IIS 7.5 When I run it there, is see this exception happening for around 40 times out of 200 same calls.
Any clue why it may?
I am being told not to change the webservice code while doing migration, hence code change by upgrading Chilkat will be a last resort.
This part looks a bit fishy:
[code] hostname: <host ip="" address=""> [/code]
Maybe part of your code is failing to set the host/IP of the server occassionally?
Another thing is that you are using a slightly outdated version of the Chilat library. If you try again with the latest version does it help?
answered Apr 17 '16 at 08:50