diff --git a/agent/testing/test_sftp.py b/agent/testing/test_sftp.py
index 9a1f552..13e4d6b 100644
--- a/agent/testing/test_sftp.py
+++ b/agent/testing/test_sftp.py
@@ -7,12 +7,12 @@ from cybertools.agent.transport.file.sftp import FileTransfer
 def output(x):
     print x
 
-ft = FileTransfer('cy05.de', 22, 'scrat', '...')
+ft = FileTransfer('cy05.de', 22, 'scrat', 'pyjmfha')
 
-d = ft.upload('d:\\text.txt', 'text.txt')
+d = ft.upload('d:\\text2.rtf', 'text.txt')
 d.addCallback(output)
 
-reactor.callLater(3, ft.close)
-reactor.callLater(4, reactor.stop)
+reactor.callLater(21, ft.close)
+reactor.callLater(32, reactor.stop)
 
 reactor.run()
diff --git a/agent/testing/transporter.cfg b/agent/testing/transporter.cfg
index ad968bb..7a0989a 100644
--- a/agent/testing/transporter.cfg
+++ b/agent/testing/transporter.cfg
@@ -13,3 +13,4 @@ transport.remote.url = 'http://localhost:8123'
 transport.remote.ftp.url = 'http://cy05.de'
 transport.remote.ftp.user = 'scrat'
 transport.remote.sftp = 'testing'
+transport.remote.chunksize = 4096
diff --git a/agent/transport/file/sftp.py b/agent/transport/file/sftp.py
index dc5f8e4..a1e8000 100644
--- a/agent/transport/file/sftp.py
+++ b/agent/transport/file/sftp.py
@@ -26,12 +26,11 @@ from twisted.conch.ssh import channel, common, connection
 from twisted.conch.ssh import filetransfer, transport, userauth
 from twisted.internet import defer, protocol, reactor
 
-CHUNKSIZE = 8096
+CHUNKSIZE = 4096
 
 class FileTransfer(protocol.ClientFactory):
     """ Transfers files to a remote SCP/SFTP server.
     """
-
     channel = None
 
     def __init__(self, host, port, username, password):
@@ -72,6 +71,8 @@ class SFTPChannel(channel.SSHChannel):
     """
 
     name = 'session'
+    remFile = ''
+    remOffset = 0
 
     def channelOpen(self, data):
         d = self.conn.sendRequest(self, 'subsystem', common.NS('sftp'), wantReply=1)
@@ -105,31 +106,24 @@ class SFTPChannel(channel.SSHChannel):
         d.addCallbacks(self.writeChunk, self.logError)
 
     def writeChunk(self, remoteFile):
+        if isinstance(remoteFile, tuple) == False:
+            self.remFile = remoteFile
         data = self.localFile.read(CHUNKSIZE)
         if len(data) < CHUNKSIZE:
-            # write rest
-            print "[DEBUG] **** WRITING REMAINING CHUNK\n"
-            print "[DEBUG] **** len(data): ", len(data)
-            print "[DEBUG] **** data: %s \n" %(data)
-            self.d = remoteFile.writeChunk(len(data), data)
+            self.d = self.remFile.writeChunk(self.remOffset, data)
             self.d.addCallbacks(self.finished, self.logError)
-        print "[DEBUG] **** WRITING CHUNK\n"
-        #self.d = remoteFile.writeChunk(CHUNKSIZE, data)
-        #self.d.addCallbacks(self.writeChunk, self.logError)
-        d = remoteFile.writeChunk(CHUNKSIZE, data)
-        d.addCallbacks(self.writeChunk, self.logError)
+        else:
+            self.d = self.remFile.writeChunk(self.remOffset, data)
+            self.remOffset = self.remOffset + CHUNKSIZE
+            self.d.addCallbacks(self.writeChunk, self.logError)
 
     def logError(self, reason):
         print 'error', reason
 
     def finished(self, result):
-        #self.deferred.callback('finished')
-        print "[DEBUG] **** finished has been called\n"
-        print "[DEBUG] **** result: ", result
         self.localFile.close()
+        self.remFile.close()
         self.d.callback('finished')
-        #result.callback('finished')
-
 
 # classes for managing the SSH protocol and connection
 
diff --git a/agent/transport/remote.py b/agent/transport/remote.py
index 2aa7559..bd822ae 100644
--- a/agent/transport/remote.py
+++ b/agent/transport/remote.py
@@ -73,7 +73,7 @@ class Transporter(QueueableAgent):
         """
         #return self.server.callRemote('getMetadata', resource.metadata)
         self.deferred = defer.Deferred()
-        print "**** RESOURCE.PATH: ", resource.path
+        #print "**** RESOURCE.PATH: ", resource.path
         remoteFile = os.path.basename(resource.path)
         d = self.ftpServer.upload(resource.path, remoteFile)
         #d = self.server.callRemote('getMetadata', resource.metadata)