THE INFORMATION IN THIS ARTICLE APPLIES TO:

EFT Server all versions
CuteFTP^® all versions

DISCUSSION

During FTP sessions, servers send and receive various numbered codes to/from FTP clients. Some codes represent errors, most others simply communicate the status of the connection. Below are brief explanations for the most common status and error codes.

When determining a course of action, review the entire log; some codes are informational only, others indicate that you have entered the wrong information, and others indicate what the information is that you need to provide before continuing.

For troubleshooting CuteFTP connection problems, also refer to Troubleshooting CuteFTP Connection Problems.

The table below is provided so that you have some idea whether you can solve the issue on your own (e.g., code 331=you need to provide a password) or you need to call your ISP for assistance (e.g., code 426=you are unable to connect to the remote server). These codes are used by most FTP servers/clients.

NOTE: The information below is only offered as a courtesy to assist you in telling your Internet Service Provider what the error is so that they can help solve your issue. For example, if you get a code 426, the transfer was aborted and the connection closed. The solution to this error is to "try logging back in; contact your hosting provider to check if you need to increase your hosting account; try disabling the firewall on your PC to see if that solves the problem. If not, contact your hosting provider or ISP."

The list below contains standard FTP or SFTP codes. Numbers outside this list are proprietary to the Server or Client that you are using.

FTP

Code	Description	Discussion
100 Series	The requested action was initiated; expect another reply before proceeding with a new command.
110	Restart marker reply.	The text is exact and not left to the particular implementation; it must read "MARK yyyy = mmmm" where yyyy is User-process data stream marker, and mmmm server's equivalent marker (note the spaces between markers and "=").
120	Service ready in nn minutes.	(Informational)
125	Data Connection already open; transfer starting.	(Informational)
150	File status okay; about to open data connection.	FTP uses two ports: 21 for sending commands, and 20 for sending data. A status code of 150 indicates that the server is about to open a new connection on port 20 to send some data.
200 Series	The requested action has been successfully completed.
200	Command okay.	(Informational)
202	Command not implemented, superfluous at this site.	(Informational)
211	System status, or system help reply.	(Informational)
212	Directory status.	(Informational)
213	File status.	(Informational)
214	Help message.	(Informational)
215	NAME system type.	Where NAME is an official system name from the list in the Assigned Numbers document.
220	Service ready for new user.	(Informational)
221	Service closing control connection.	Logged out if appropriate.
225	Data connection open; no transfer in progress.	(Informational)
226	Closing data connection.	Requested file action successful (for example; file transfer or file abort). The command opens a data connection on port 20 to perform an action, such as transferring a file. This action successfully completes, and the data connection is closed.
227	Entering Passive Mode.	(h1,h2,h3,h4,p1,p2)
230	User logged in, proceed. This status code appears after the client sends the correct password. It indicates that the user has successfully logged on.	(Informational)
250	Requested file action okay, completed.	(Informational)
257	"PATHNAME" created.	(Informational)
300 Series	The command has been accepted, but the requested action is on hold, pending receipt of further information.
331	User name okay, need password.	You see this status code after the client sends a user name, regardless of whether the user name that is provided is a valid account on the system.
332	Need account for login.	Provide login credentials
350	Requested file action pending further information.	(Informational)
400 Series	The command was not accepted and the requested action did not take place, but the error condition is temporary and the action may be requested again.
421	Error 421 Service not available, closing control connection. Error 421 User limit reached Error 421 You are not authorized to make the connection Error 421 Max connections reached Error 421 Max connections exceeded	This can be a reply to any command if the service knows it must shut down. Try logging in later.
425	Cannot open data connection.	Change from PASV to PORT mode, check your firewall settings, or try to connect via HTTP.
426	Connection closed; transfer aborted.	The command opens a data connection to perform an action, but that action is canceled, and the data connection is closed. Try logging back in; contact your hosting provider to check if you need to increase your hosting account; try disabling the firewall on your PC to see if that solves the problem. If not, contact your hosting provider or ISP.
450	Requested file action not taken.	File unavailable (e.g., file busy). Try again later.
451	Requested action aborted: local error in processing.	Ensure command and parameters were typed correctly.
452	Requested action not taken. Insufficient storage space in system.	Ask FTP administrator to increase allotted storage space, or archive/delete remote files.
500 Series	The command was not accepted and the requested action did not take place.
500	Syntax error, command unrecognized, command line too long.	Try switching to passive mode.
501	Syntax error in parameters or arguments.	Verify your input; e.g., make sure there are no erroneous characters, spaces, etc.
502	Command not implemented.	The server does not support this command.
503	Bad sequence of commands.	Verify command sequence.
504	Command not implemented for that parameter.	Ensure entered parameters are correct.
530	User not logged in.	Ensure that you typed the correct user name and password combination. Some servers use this code instead of 421 when the user limit is reached
532	Need account for storing files.	Logged in user does not have permission to store files on remote server.
550	Requested action not taken. File unavailable, not found, not accessible	Verify that you are attempting to connect to the correct server/location. The administrator of the remote server must provide you with permission to connect via FTP.
552	Requested file action aborted.	Possible causes: Client aborted the action; EFT Site not running; storage allocation exceeded.
553	Requested action not taken. File name not allowed.	Change the file name or delete spaces/special characters in the file name.

HTTP/S

The table below describes errors that can occur during EFT transfers over HTTP/S. For a complete reference of HTTP status and error codes visit: HTTP response status codes - HTTP

Code	Description
400 Bad Request	Malformed header; bytes uploaded is less than content length; bad query parameter
401 Unauthorized	Login failed or unknown user agent
403 Forbidden	DELETE: when user lacks permission, file locked by another operation, or action denied due to file name restriction. GET: when user lacks permission, file locked by another operation, or action denied due to file name restriction. MKCOL, MOVE, PUT: when user lacks permission, file locked by another operation, or action denied due to file name restriction (or MOVE non-existent item) Attempt to MKCOL using existing folder name Destination path on server exceeds max length (260)
404 Not Found	DELETE, GET: of non-existent file CRC failed because file was locked HEAD on non-existent file/folder GET on non-existent folder
406 Not Acceptable	Bad header value, i.e., invalid content range
408 Request Time-out	Socket timed out on request
411 Length Required	POST with invalid file length (< 0)
412 Precondition Failed	action attempted after session has timed out
413 Request Entity Too Large	Attempted GET after download quota reached. Attempted PUT after the maximum amount of upload data (quota) transferred Attempted PUT after the maximum number of uploads performed POST too large of a file
414 Request-URI Too Large	URI exceeds max (4096) length
500 Internal Server Error	Disk full when PUT/POST attempted or unspecified abort of PUT
501 Not Implemented	Unimplemented request method or unspecified disk IO error during processing of COPY request

SFTP

The table below describes errors that can occur during EFT transfers over SFTP for additional codes visit SFTP Status/Error Codes

Code	Description
-1	Undefined or unknown error (not enough information to determine exactly why it failed) When an OpenSSH client disconnects from EFT, it reports that the exit status is -1. The default return code is -1, unless an optional message is returned from the server. EFT does not return the optional message, so the exit status is always -1.
0	The operation completed successfully
1	The operation failed because of trying to read at end of file
2	The requested file does not exist
3	Insufficient privileges to perform the operation
4	The requested operation failed for some other reason
5	A badly formatted message was received. This indicates an error or incompatibility in the protocol implementation
6	Connection has not been established (yet) and a timeout occurred
7	Connection to the server was lost, and the operation could not be performed
8	A timeout occurred

EFT Event Rules Client Log

A tenth column can be added to the CL log by defining an advanced property. Refer to 10262, EFT Server Client Log Explained for details.

EFT Event Rules Client Session Log Files

Refer to ClientFTP.DLL Enable Logging Override for information in how to enable EFT Client Session Logs.

Network Socket

Code	Description	Discussion
10000 Series	Common Winsock Error Codes (complete list of Winsock error codes)
10054	WSAECONNRESET. Connection reset by peer. The connection was forcibly closed by the remote host.	(Informational)
10060	WSAETIMEDOUT. Connection timed out. A connection attempt failed because the connected party did not properly respond after a period of time, or the established connection failed because the connected host has failed to respond	Generally a time-out error. Try switching from PASV to PORT mode, or try increasing the time-out value.
10061	WSAECONNREFUSED. Connection refused. No connection could be made because the target computer actively refused it. This usually results from trying to connect to a service that is inactive on the foreign host—that is, one with no server application running.	Try switching the connection port.
10066	WSAENOTEMPTY. Directory not empty. Cannot remove a directory that is not empty.	The server will not delete this directory while there are files/folders in it. If you want to remove the directory, first archive or delete the files in it.
10068	WSAEUSERS. User quota exceeded. Ran out of user quota.
11001	WSAHOST_NOT_FOUND. Host not found. No such host is known. The name is not an official host name or alias, or it cannot be found in the database(s) being queried. This error may also be returned for protocol and service queries, and means that the specified name could not be found in the relevant database.

Windows Error Codes

For information regarding error codes in the EFT.log, please refer to the MSDN article at http://msdn.microsoft.com/en-us/library/windows/desktop/ms681381%28v=vs.85%29.aspx. For example, error code "5 (0x5)" indicates that access is denied.

File Transfer Status and Error Codes